abstract length dissertation

• How to Write an Abstract for a Dissertation or Thesis
• Doing a PhD

What is a Thesis or Dissertation Abstract?

The Cambridge English Dictionary defines an abstract in academic writing as being “ a few sentences that give the main ideas in an article or a scientific paper ” and the Collins English Dictionary says “ an abstract of an article, document, or speech is a short piece of writing that gives the main points of it ”.

Whether you’re writing up your Master’s dissertation or PhD thesis, the abstract will be a key element of this document that you’ll want to make sure you give proper attention to.

What is the Purpose of an Abstract?

The aim of a thesis abstract is to give the reader a broad overview of what your research project was about and what you found that was novel, before he or she decides to read the entire thesis. The reality here though is that very few people will read the entire thesis, and not because they’re necessarily disinterested but because practically it’s too large a document for most people to have the time to read. The exception to this is your PhD examiner, however know that even they may not read the entire length of the document.

Some people may still skip to and read specific sections throughout your thesis such as the methodology, but the fact is that the abstract will be all that most read and will therefore be the section they base their opinions about your research on. In short, make sure you write a good, well-structured abstract.

How Long Should an Abstract Be?

If you’re a PhD student, having written your 100,000-word thesis, the abstract will be the 300 word summary included at the start of the thesis that succinctly explains the motivation for your study (i.e. why this research was needed), the main work you did (i.e. the focus of each chapter), what you found (the results) and concluding with how your research study contributed to new knowledge within your field.

Woodrow Wilson, the 28th President of the United States of America, once famously said:

The point here is that it’s easier to talk open-endedly about a subject that you know a lot about than it is to condense the key points into a 10-minute speech; the same applies for an abstract. Three hundred words is not a lot of words which makes it even more difficult to condense three (or more) years of research into a coherent, interesting story.

What Makes a Good PhD Thesis Abstract?

Whilst the abstract is one of the first sections in your PhD thesis, practically it’s probably the last aspect that you’ll ending up writing before sending the document to print. The reason being that you can’t write a summary about what you did, what you found and what it means until you’ve done the work.

A good abstract is one that can clearly explain to the reader in 300 words:

• What your research field actually is,
• What the gap in knowledge was in your field,
• The overarching aim and objectives of your PhD in response to these gaps,
• What methods you employed to achieve these,
• You key results and findings,
• How your work has added to further knowledge in your field of study.

Another way to think of this structure is:

• Introduction,
• Aims and objectives,
• Discussion,
• Conclusion.

Following this ‘formulaic’ approach to writing the abstract should hopefully make it a little easier to write but you can already see here that there’s a lot of information to convey in a very limited number of words.

How Do You Write a Good PhD Thesis Abstract?

The biggest challenge you’ll have is getting all the 6 points mentioned above across in your abstract within the limit of 300 words . Your particular university may give some leeway in going a few words over this but it’s good practice to keep within this; the art of succinctly getting your information across is an important skill for a researcher to have and one that you’ll be called on to use regularly as you write papers for peer review.

Keep It Concise

Every word in the abstract is important so make sure you focus on only the key elements of your research and the main outcomes and significance of your project that you want the reader to know about. You may have come across incidental findings during your research which could be interesting to discuss but this should not happen in the abstract as you simply don’t have enough words. Furthermore, make sure everything you talk about in your thesis is actually described in the main thesis.

Make a Unique Point Each Sentence

Keep the sentences short and to the point. Each sentence should give the reader new, useful information about your research so there’s no need to write out your project title again. Give yourself one or two sentences to introduce your subject area and set the context for your project. Then another sentence or two to explain the gap in the knowledge; there’s no need or expectation for you to include references in the abstract.

Explain Your Research

Some people prefer to write their overarching aim whilst others set out their research questions as they correspond to the structure of their thesis chapters; the approach you use is up to you, as long as the reader can understand what your dissertation or thesis had set out to achieve. Knowing this will help the reader better understand if your results help to answer the research questions or if further work is needed.

Keep It Factual

Keep the content of the abstract factual; that is to say that you should avoid bringing too much or any opinion into it, which inevitably can make the writing seem vague in the points you’re trying to get across and even lacking in structure.

Write, Edit and Then Rewrite

Spend suitable time editing your text, and if necessary, completely re-writing it. Show the abstract to others and ask them to explain what they understand about your research – are they able to explain back to you each of the 6 structure points, including why your project was needed, the research questions and results, and the impact it had on your research field? It’s important that you’re able to convey what new knowledge you contributed to your field but be mindful when writing your abstract that you don’t inadvertently overstate the conclusions, impact and significance of your work.

Thesis and Dissertation Abstract Examples

Perhaps the best way to understand how to write a thesis abstract is to look at examples of what makes a good and bad abstract.

Example of A Bad Abstract

Let’s start with an example of a bad thesis abstract:

In this project on “The Analysis of the Structural Integrity of 3D Printed Polymers for use in Aircraft”, my research looked at how 3D printing of materials can help the aviation industry in the manufacture of planes. Plane parts can be made at a lower cost using 3D printing and made lighter than traditional components. This project investigated the structural integrity of EBM manufactured components, which could revolutionise the aviation industry.

What Makes This a Bad Abstract

Hopefully you’ll have spotted some of the reasons this would be considered a poor abstract, not least because the author used up valuable words by repeating the lengthy title of the project in the abstract.

Working through our checklist of the 6 key points you want to convey to the reader:

• There has been an attempt to introduce the research area , albeit half-way through the abstract but it’s not clear if this is a materials science project about 3D printing or is it about aircraft design.
• There’s no explanation about where the gap in the knowledge is that this project attempted to address.
• We can see that this project was focussed on the topic of structural integrity of materials in aircraft but the actual research aims or objectives haven’t been defined.
• There’s no mention at all of what the author actually did to investigate structural integrity. For example was this an experimental study involving real aircraft, or something in the lab, computer simulations etc.
• The author also doesn’t tell us a single result of his research, let alone the key findings !
• There’s a bold claim in the last sentence of the abstract that this project could revolutionise the aviation industry, and this may well be the case, but based on the abstract alone there is no evidence to support this as it’s not even clear what the author did .

This is an extreme example but is a good way to illustrate just how unhelpful a poorly written abstract can be. At only 71 words long, it definitely hasn’t maximised the amount of information that could be presented and the what they have presented has lacked clarity and structure.

A final point to note is the use of the EBM acronym, which stands for Electron Beam Melting in the context of 3D printing; this is a niche acronym for the author to assume that the reader would know the meaning of. It’s best to avoid acronyms in your abstract all together even if it’s something that you might expect most people to know about, unless you specifically define the meaning first.

Example of A Good Abstract

Having seen an example of a bad thesis abstract, now lets look at an example of a good PhD thesis abstract written about the same (fictional) project:

Additive manufacturing (AM) of titanium alloys has the potential to enable cheaper and lighter components to be produced with customised designs for use in aircraft engines. Whilst the proof-of-concept of these have been promising, the structural integrity of AM engine parts in response to full thrust and temperature variations is not clear.

The primary aim of this project was to determine the fracture modes and mechanisms of AM components designed for use in Boeing 747 engines. To achieve this an explicit finite element (FE) model was developed to simulate the environment and parameters that the engine is exposed to during flight. The FE model was validated using experimental data replicating the environmental parameters in a laboratory setting using ten AM engine components provided by the industry sponsor. The validated FE model was then used to investigate the extent of crack initiation and propagation as the environment parameters were adjusted.

This project was the first to investigate fracture patterns in AM titanium components used in aircraft engines; the key finding was that the presence of cavities within the structures due to errors in the printing process, significantly increased the risk of fracture. Secondly, the simulations showed that cracks formed within AM parts were more likely to worsen and lead to component failure at subzero temperatures when compared to conventionally manufactured parts. This has demonstrated an important safety concern which needs to be addressed before AM parts can be used in commercial aircraft.

What Makes This a Good Abstract

Having read this ‘good abstract’ you should have a much better understand about what the subject area is about, where the gap in the knowledge was, the aim of the project, the methods that were used, key results and finally the significance of these results. To break these points down further, from this good abstract we now know that:

• The research area is around additive manufacturing (i.e. 3D printing) of materials for use in aircraft.
• The gap in knowledge was how these materials will behave structural when used in aircraft engines.
• The aim was specifically to investigate how the components can fracture.
• The methods used to investigate this were a combination of computational and lab based experimental modelling.
• The key findings were the increased risk of fracture of these components due to the way they are manufactured.
• The significance of these findings were that it showed a potential risk of component failure that could comprise the safety of passengers and crew on the aircraft.

The abstract text has a much clearer flow through these different points in how it’s written and has made much better use of the available word count. Acronyms have even been used twice in this good abstract but they were clearly defined the first time they were introduced in the text so that there was no confusion about their meaning.

The abstract you write for your dissertation or thesis should succinctly explain to the reader why the work of your research was needed, what you did, what you found and what it means. Most people that come across your thesis, including any future employers, are likely to read only your abstract. Even just for this reason alone, it’s so important that you write the best abstract you can; this will not only convey your research effectively but also put you in the best light possible as a researcher.

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What this handout is about

This handout provides definitions and examples of the two main types of abstracts: descriptive and informative. It also provides guidelines for constructing an abstract and general tips for you to keep in mind when drafting. Finally, it includes a few examples of abstracts broken down into their component parts.

What is an abstract?

An abstract is a self-contained, short, and powerful statement that describes a larger work. Components vary according to discipline. An abstract of a social science or scientific work may contain the scope, purpose, results, and contents of the work. An abstract of a humanities work may contain the thesis, background, and conclusion of the larger work. An abstract is not a review, nor does it evaluate the work being abstracted. While it contains key words found in the larger work, the abstract is an original document rather than an excerpted passage.

Why write an abstract?

You may write an abstract for various reasons. The two most important are selection and indexing. Abstracts allow readers who may be interested in a longer work to quickly decide whether it is worth their time to read it. Also, many online databases use abstracts to index larger works. Therefore, abstracts should contain keywords and phrases that allow for easy searching.

Say you are beginning a research project on how Brazilian newspapers helped Brazil’s ultra-liberal president Luiz Ignácio da Silva wrest power from the traditional, conservative power base. A good first place to start your research is to search Dissertation Abstracts International for all dissertations that deal with the interaction between newspapers and politics. “Newspapers and politics” returned 569 hits. A more selective search of “newspapers and Brazil” returned 22 hits. That is still a fair number of dissertations. Titles can sometimes help winnow the field, but many titles are not very descriptive. For example, one dissertation is titled “Rhetoric and Riot in Rio de Janeiro.” It is unclear from the title what this dissertation has to do with newspapers in Brazil. One option would be to download or order the entire dissertation on the chance that it might speak specifically to the topic. A better option is to read the abstract. In this case, the abstract reveals the main focus of the dissertation:

This dissertation examines the role of newspaper editors in the political turmoil and strife that characterized late First Empire Rio de Janeiro (1827-1831). Newspaper editors and their journals helped change the political culture of late First Empire Rio de Janeiro by involving the people in the discussion of state. This change in political culture is apparent in Emperor Pedro I’s gradual loss of control over the mechanisms of power. As the newspapers became more numerous and powerful, the Emperor lost his legitimacy in the eyes of the people. To explore the role of the newspapers in the political events of the late First Empire, this dissertation analyzes all available newspapers published in Rio de Janeiro from 1827 to 1831. Newspapers and their editors were leading forces in the effort to remove power from the hands of the ruling elite and place it under the control of the people. In the process, newspapers helped change how politics operated in the constitutional monarchy of Brazil.

From this abstract you now know that although the dissertation has nothing to do with modern Brazilian politics, it does cover the role of newspapers in changing traditional mechanisms of power. After reading the abstract, you can make an informed judgment about whether the dissertation would be worthwhile to read.

Besides selection, the other main purpose of the abstract is for indexing. Most article databases in the online catalog of the library enable you to search abstracts. This allows for quick retrieval by users and limits the extraneous items recalled by a “full-text” search. However, for an abstract to be useful in an online retrieval system, it must incorporate the key terms that a potential researcher would use to search. For example, if you search Dissertation Abstracts International using the keywords “France” “revolution” and “politics,” the search engine would search through all the abstracts in the database that included those three words. Without an abstract, the search engine would be forced to search titles, which, as we have seen, may not be fruitful, or else search the full text. It’s likely that a lot more than 60 dissertations have been written with those three words somewhere in the body of the entire work. By incorporating keywords into the abstract, the author emphasizes the central topics of the work and gives prospective readers enough information to make an informed judgment about the applicability of the work.

When do people write abstracts?

• when submitting articles to journals, especially online journals
• when applying for research grants
• when writing a book proposal
• when completing the Ph.D. dissertation or M.A. thesis
• when writing a proposal for a conference paper
• when writing a proposal for a book chapter

Most often, the author of the entire work (or prospective work) writes the abstract. However, there are professional abstracting services that hire writers to draft abstracts of other people’s work. In a work with multiple authors, the first author usually writes the abstract. Undergraduates are sometimes asked to draft abstracts of books/articles for classmates who have not read the larger work.

Types of abstracts

There are two types of abstracts: descriptive and informative. They have different aims, so as a consequence they have different components and styles. There is also a third type called critical, but it is rarely used. If you want to find out more about writing a critique or a review of a work, see the UNC Writing Center handout on writing a literature review . If you are unsure which type of abstract you should write, ask your instructor (if the abstract is for a class) or read other abstracts in your field or in the journal where you are submitting your article.

Descriptive abstracts

A descriptive abstract indicates the type of information found in the work. It makes no judgments about the work, nor does it provide results or conclusions of the research. It does incorporate key words found in the text and may include the purpose, methods, and scope of the research. Essentially, the descriptive abstract describes the work being abstracted. Some people consider it an outline of the work, rather than a summary. Descriptive abstracts are usually very short—100 words or less.

Informative abstracts

The majority of abstracts are informative. While they still do not critique or evaluate a work, they do more than describe it. A good informative abstract acts as a surrogate for the work itself. That is, the writer presents and explains all the main arguments and the important results and evidence in the complete article/paper/book. An informative abstract includes the information that can be found in a descriptive abstract (purpose, methods, scope) but also includes the results and conclusions of the research and the recommendations of the author. The length varies according to discipline, but an informative abstract is rarely more than 10% of the length of the entire work. In the case of a longer work, it may be much less.

Here are examples of a descriptive and an informative abstract of this handout on abstracts . Descriptive abstract:

The two most common abstract types—descriptive and informative—are described and examples of each are provided.

Informative abstract:

Abstracts present the essential elements of a longer work in a short and powerful statement. The purpose of an abstract is to provide prospective readers the opportunity to judge the relevance of the longer work to their projects. Abstracts also include the key terms found in the longer work and the purpose and methods of the research. Authors abstract various longer works, including book proposals, dissertations, and online journal articles. There are two main types of abstracts: descriptive and informative. A descriptive abstract briefly describes the longer work, while an informative abstract presents all the main arguments and important results. This handout provides examples of various types of abstracts and instructions on how to construct one.

Which type should I use?

Your best bet in this case is to ask your instructor or refer to the instructions provided by the publisher. You can also make a guess based on the length allowed; i.e., 100-120 words = descriptive; 250+ words = informative.

How do I write an abstract?

The format of your abstract will depend on the work being abstracted. An abstract of a scientific research paper will contain elements not found in an abstract of a literature article, and vice versa. However, all abstracts share several mandatory components, and there are also some optional parts that you can decide to include or not. When preparing to draft your abstract, keep the following key process elements in mind:

• Reason for writing: What is the importance of the research? Why would a reader be interested in the larger work?
• Problem: What problem does this work attempt to solve? What is the scope of the project? What is the main argument/thesis/claim?
• Methodology: An abstract of a scientific work may include specific models or approaches used in the larger study. Other abstracts may describe the types of evidence used in the research.
• Results: Again, an abstract of a scientific work may include specific data that indicates the results of the project. Other abstracts may discuss the findings in a more general way.
• Implications: What changes should be implemented as a result of the findings of the work? How does this work add to the body of knowledge on the topic?

(This list of elements is adapted with permission from Philip Koopman, “How to Write an Abstract.” )

All abstracts include:

• A full citation of the source, preceding the abstract.
• The most important information first.
• The same type and style of language found in the original, including technical language.
• Key words and phrases that quickly identify the content and focus of the work.
• Clear, concise, and powerful language.

Abstracts may include:

• The thesis of the work, usually in the first sentence.
• Background information that places the work in the larger body of literature.
• The same chronological structure as the original work.

How not to write an abstract:

• Do not refer extensively to other works.
• Do not add information not contained in the original work.
• Do not define terms.

If you are abstracting your own writing

When abstracting your own work, it may be difficult to condense a piece of writing that you have agonized over for weeks (or months, or even years) into a 250-word statement. There are some tricks that you could use to make it easier, however.

Reverse outlining:

This technique is commonly used when you are having trouble organizing your own writing. The process involves writing down the main idea of each paragraph on a separate piece of paper– see our short video . For the purposes of writing an abstract, try grouping the main ideas of each section of the paper into a single sentence. Practice grouping ideas using webbing or color coding .

For a scientific paper, you may have sections titled Purpose, Methods, Results, and Discussion. Each one of these sections will be longer than one paragraph, but each is grouped around a central idea. Use reverse outlining to discover the central idea in each section and then distill these ideas into one statement.

Cut and paste:

To create a first draft of an abstract of your own work, you can read through the entire paper and cut and paste sentences that capture key passages. This technique is useful for social science research with findings that cannot be encapsulated by neat numbers or concrete results. A well-written humanities draft will have a clear and direct thesis statement and informative topic sentences for paragraphs or sections. Isolate these sentences in a separate document and work on revising them into a unified paragraph.

If you are abstracting someone else’s writing

When abstracting something you have not written, you cannot summarize key ideas just by cutting and pasting. Instead, you must determine what a prospective reader would want to know about the work. There are a few techniques that will help you in this process:

Identify key terms:

Search through the entire document for key terms that identify the purpose, scope, and methods of the work. Pay close attention to the Introduction (or Purpose) and the Conclusion (or Discussion). These sections should contain all the main ideas and key terms in the paper. When writing the abstract, be sure to incorporate the key terms.

Highlight key phrases and sentences:

Instead of cutting and pasting the actual words, try highlighting sentences or phrases that appear to be central to the work. Then, in a separate document, rewrite the sentences and phrases in your own words.

Don’t look back:

After reading the entire work, put it aside and write a paragraph about the work without referring to it. In the first draft, you may not remember all the key terms or the results, but you will remember what the main point of the work was. Remember not to include any information you did not get from the work being abstracted.

Revise, revise, revise

No matter what type of abstract you are writing, or whether you are abstracting your own work or someone else’s, the most important step in writing an abstract is to revise early and often. When revising, delete all extraneous words and incorporate meaningful and powerful words. The idea is to be as clear and complete as possible in the shortest possible amount of space. The Word Count feature of Microsoft Word can help you keep track of how long your abstract is and help you hit your target length.

Example 1: Humanities abstract

Kenneth Tait Andrews, “‘Freedom is a constant struggle’: The dynamics and consequences of the Mississippi Civil Rights Movement, 1960-1984” Ph.D. State University of New York at Stony Brook, 1997 DAI-A 59/02, p. 620, Aug 1998

This dissertation examines the impacts of social movements through a multi-layered study of the Mississippi Civil Rights Movement from its peak in the early 1960s through the early 1980s. By examining this historically important case, I clarify the process by which movements transform social structures and the constraints movements face when they try to do so. The time period studied includes the expansion of voting rights and gains in black political power, the desegregation of public schools and the emergence of white-flight academies, and the rise and fall of federal anti-poverty programs. I use two major research strategies: (1) a quantitative analysis of county-level data and (2) three case studies. Data have been collected from archives, interviews, newspapers, and published reports. This dissertation challenges the argument that movements are inconsequential. Some view federal agencies, courts, political parties, or economic elites as the agents driving institutional change, but typically these groups acted in response to the leverage brought to bear by the civil rights movement. The Mississippi movement attempted to forge independent structures for sustaining challenges to local inequities and injustices. By propelling change in an array of local institutions, movement infrastructures had an enduring legacy in Mississippi.

Now let’s break down this abstract into its component parts to see how the author has distilled his entire dissertation into a ~200 word abstract.

What the dissertation does This dissertation examines the impacts of social movements through a multi-layered study of the Mississippi Civil Rights Movement from its peak in the early 1960s through the early 1980s. By examining this historically important case, I clarify the process by which movements transform social structures and the constraints movements face when they try to do so.

How the dissertation does it The time period studied in this dissertation includes the expansion of voting rights and gains in black political power, the desegregation of public schools and the emergence of white-flight academies, and the rise and fall of federal anti-poverty programs. I use two major research strategies: (1) a quantitative analysis of county-level data and (2) three case studies.

What materials are used Data have been collected from archives, interviews, newspapers, and published reports.

Conclusion This dissertation challenges the argument that movements are inconsequential. Some view federal agencies, courts, political parties, or economic elites as the agents driving institutional change, but typically these groups acted in response to movement demands and the leverage brought to bear by the civil rights movement. The Mississippi movement attempted to forge independent structures for sustaining challenges to local inequities and injustices. By propelling change in an array of local institutions, movement infrastructures had an enduring legacy in Mississippi.

Keywords social movements Civil Rights Movement Mississippi voting rights desegregation

Example 2: Science Abstract

Luis Lehner, “Gravitational radiation from black hole spacetimes” Ph.D. University of Pittsburgh, 1998 DAI-B 59/06, p. 2797, Dec 1998

The problem of detecting gravitational radiation is receiving considerable attention with the construction of new detectors in the United States, Europe, and Japan. The theoretical modeling of the wave forms that would be produced in particular systems will expedite the search for and analysis of detected signals. The characteristic formulation of GR is implemented to obtain an algorithm capable of evolving black holes in 3D asymptotically flat spacetimes. Using compactification techniques, future null infinity is included in the evolved region, which enables the unambiguous calculation of the radiation produced by some compact source. A module to calculate the waveforms is constructed and included in the evolution algorithm. This code is shown to be second-order convergent and to handle highly non-linear spacetimes. In particular, we have shown that the code can handle spacetimes whose radiation is equivalent to a galaxy converting its whole mass into gravitational radiation in one second. We further use the characteristic formulation to treat the region close to the singularity in black hole spacetimes. The code carefully excises a region surrounding the singularity and accurately evolves generic black hole spacetimes with apparently unlimited stability.

This science abstract covers much of the same ground as the humanities one, but it asks slightly different questions.

Why do this study The problem of detecting gravitational radiation is receiving considerable attention with the construction of new detectors in the United States, Europe, and Japan. The theoretical modeling of the wave forms that would be produced in particular systems will expedite the search and analysis of the detected signals.

What the study does The characteristic formulation of GR is implemented to obtain an algorithm capable of evolving black holes in 3D asymptotically flat spacetimes. Using compactification techniques, future null infinity is included in the evolved region, which enables the unambiguous calculation of the radiation produced by some compact source. A module to calculate the waveforms is constructed and included in the evolution algorithm.

Results This code is shown to be second-order convergent and to handle highly non-linear spacetimes. In particular, we have shown that the code can handle spacetimes whose radiation is equivalent to a galaxy converting its whole mass into gravitational radiation in one second. We further use the characteristic formulation to treat the region close to the singularity in black hole spacetimes. The code carefully excises a region surrounding the singularity and accurately evolves generic black hole spacetimes with apparently unlimited stability.

Keywords gravitational radiation (GR) spacetimes black holes

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Belcher, Wendy Laura. 2009. Writing Your Journal Article in Twelve Weeks: A Guide to Academic Publishing Success. Thousand Oaks, CA: Sage Press.

Koopman, Philip. 1997. “How to Write an Abstract.” Carnegie Mellon University. October 1997. http://users.ece.cmu.edu/~koopman/essays/abstract.html .

Lancaster, F.W. 2003. Indexing And Abstracting in Theory and Practice , 3rd ed. London: Facet Publishing.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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Writing an Abstract for Your Research Paper

Definition and Purpose of Abstracts

An abstract is a short summary of your (published or unpublished) research paper, usually about a paragraph (c. 6-7 sentences, 150-250 words) long. A well-written abstract serves multiple purposes:

• an abstract lets readers get the gist or essence of your paper or article quickly, in order to decide whether to read the full paper;
• an abstract prepares readers to follow the detailed information, analyses, and arguments in your full paper;
• and, later, an abstract helps readers remember key points from your paper.

It’s also worth remembering that search engines and bibliographic databases use abstracts, as well as the title, to identify key terms for indexing your published paper. So what you include in your abstract and in your title are crucial for helping other researchers find your paper or article.

If you are writing an abstract for a course paper, your professor may give you specific guidelines for what to include and how to organize your abstract. Similarly, academic journals often have specific requirements for abstracts. So in addition to following the advice on this page, you should be sure to look for and follow any guidelines from the course or journal you’re writing for.

The Contents of an Abstract

Abstracts contain most of the following kinds of information in brief form. The body of your paper will, of course, develop and explain these ideas much more fully. As you will see in the samples below, the proportion of your abstract that you devote to each kind of information—and the sequence of that information—will vary, depending on the nature and genre of the paper that you are summarizing in your abstract. And in some cases, some of this information is implied, rather than stated explicitly. The Publication Manual of the American Psychological Association , which is widely used in the social sciences, gives specific guidelines for what to include in the abstract for different kinds of papers—for empirical studies, literature reviews or meta-analyses, theoretical papers, methodological papers, and case studies.

Here are the typical kinds of information found in most abstracts:

• the context or background information for your research; the general topic under study; the specific topic of your research
• the central questions or statement of the problem your research addresses
• what’s already known about this question, what previous research has done or shown
• the main reason(s) , the exigency, the rationale , the goals for your research—Why is it important to address these questions? Are you, for example, examining a new topic? Why is that topic worth examining? Are you filling a gap in previous research? Applying new methods to take a fresh look at existing ideas or data? Resolving a dispute within the literature in your field? . . .
• your research and/or analytical methods
• your main findings , results , or arguments
• the significance or implications of your findings or arguments.

Your abstract should be intelligible on its own, without a reader’s having to read your entire paper. And in an abstract, you usually do not cite references—most of your abstract will describe what you have studied in your research and what you have found and what you argue in your paper. In the body of your paper, you will cite the specific literature that informs your research.

When to Write Your Abstract

Although you might be tempted to write your abstract first because it will appear as the very first part of your paper, it’s a good idea to wait to write your abstract until after you’ve drafted your full paper, so that you know what you’re summarizing.

What follows are some sample abstracts in published papers or articles, all written by faculty at UW-Madison who come from a variety of disciplines. We have annotated these samples to help you see the work that these authors are doing within their abstracts.

Choosing Verb Tenses within Your Abstract

The social science sample (Sample 1) below uses the present tense to describe general facts and interpretations that have been and are currently true, including the prevailing explanation for the social phenomenon under study. That abstract also uses the present tense to describe the methods, the findings, the arguments, and the implications of the findings from their new research study. The authors use the past tense to describe previous research.

The humanities sample (Sample 2) below uses the past tense to describe completed events in the past (the texts created in the pulp fiction industry in the 1970s and 80s) and uses the present tense to describe what is happening in those texts, to explain the significance or meaning of those texts, and to describe the arguments presented in the article.

The science samples (Samples 3 and 4) below use the past tense to describe what previous research studies have done and the research the authors have conducted, the methods they have followed, and what they have found. In their rationale or justification for their research (what remains to be done), they use the present tense. They also use the present tense to introduce their study (in Sample 3, “Here we report . . .”) and to explain the significance of their study (In Sample 3, This reprogramming . . . “provides a scalable cell source for. . .”).

Sample Abstract 1

From the social sciences.

Reporting new findings about the reasons for increasing economic homogamy among spouses

Gonalons-Pons, Pilar, and Christine R. Schwartz. “Trends in Economic Homogamy: Changes in Assortative Mating or the Division of Labor in Marriage?” Demography , vol. 54, no. 3, 2017, pp. 985-1005.

Sample Abstract 2

From the humanities.

Analyzing underground pulp fiction publications in Tanzania, this article makes an argument about the cultural significance of those publications

Emily Callaci. “Street Textuality: Socialism, Masculinity, and Urban Belonging in Tanzania’s Pulp Fiction Publishing Industry, 1975-1985.” Comparative Studies in Society and History , vol. 59, no. 1, 2017, pp. 183-210.

Sample Abstract/Summary 3

From the sciences.

Reporting a new method for reprogramming adult mouse fibroblasts into induced cardiac progenitor cells

Lalit, Pratik A., Max R. Salick, Daryl O. Nelson, Jayne M. Squirrell, Christina M. Shafer, Neel G. Patel, Imaan Saeed, Eric G. Schmuck, Yogananda S. Markandeya, Rachel Wong, Martin R. Lea, Kevin W. Eliceiri, Timothy A. Hacker, Wendy C. Crone, Michael Kyba, Daniel J. Garry, Ron Stewart, James A. Thomson, Karen M. Downs, Gary E. Lyons, and Timothy J. Kamp. “Lineage Reprogramming of Fibroblasts into Proliferative Induced Cardiac Progenitor Cells by Defined Factors.” Cell Stem Cell , vol. 18, 2016, pp. 354-367.

Sample Abstract 4, a Structured Abstract

Reporting results about the effectiveness of antibiotic therapy in managing acute bacterial sinusitis, from a rigorously controlled study

Note: This journal requires authors to organize their abstract into four specific sections, with strict word limits. Because the headings for this structured abstract are self-explanatory, we have chosen not to add annotations to this sample abstract.

Wald, Ellen R., David Nash, and Jens Eickhoff. “Effectiveness of Amoxicillin/Clavulanate Potassium in the Treatment of Acute Bacterial Sinusitis in Children.” Pediatrics , vol. 124, no. 1, 2009, pp. 9-15.

“OBJECTIVE: The role of antibiotic therapy in managing acute bacterial sinusitis (ABS) in children is controversial. The purpose of this study was to determine the effectiveness of high-dose amoxicillin/potassium clavulanate in the treatment of children diagnosed with ABS.

METHODS : This was a randomized, double-blind, placebo-controlled study. Children 1 to 10 years of age with a clinical presentation compatible with ABS were eligible for participation. Patients were stratified according to age (<6 or ≥6 years) and clinical severity and randomly assigned to receive either amoxicillin (90 mg/kg) with potassium clavulanate (6.4 mg/kg) or placebo. A symptom survey was performed on days 0, 1, 2, 3, 5, 7, 10, 20, and 30. Patients were examined on day 14. Children’s conditions were rated as cured, improved, or failed according to scoring rules.

RESULTS: Two thousand one hundred thirty-five children with respiratory complaints were screened for enrollment; 139 (6.5%) had ABS. Fifty-eight patients were enrolled, and 56 were randomly assigned. The mean age was 6630 months. Fifty (89%) patients presented with persistent symptoms, and 6 (11%) presented with nonpersistent symptoms. In 24 (43%) children, the illness was classified as mild, whereas in the remaining 32 (57%) children it was severe. Of the 28 children who received the antibiotic, 14 (50%) were cured, 4 (14%) were improved, 4(14%) experienced treatment failure, and 6 (21%) withdrew. Of the 28children who received placebo, 4 (14%) were cured, 5 (18%) improved, and 19 (68%) experienced treatment failure. Children receiving the antibiotic were more likely to be cured (50% vs 14%) and less likely to have treatment failure (14% vs 68%) than children receiving the placebo.

CONCLUSIONS : ABS is a common complication of viral upper respiratory infections. Amoxicillin/potassium clavulanate results in significantly more cures and fewer failures than placebo, according to parental report of time to resolution.” (9)

Some Excellent Advice about Writing Abstracts for Basic Science Research Papers, by Professor Adriano Aguzzi from the Institute of Neuropathology at the University of Zurich:

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The Dissertation Abstract: 101

How to write a clear & concise abstract (with examples).

By:   Madeline Fink (MSc) Reviewed By: Derek Jansen (MBA)   | June 2020

So, you’ve (finally) finished your thesis or dissertation or thesis. Now it’s time to write up your abstract (sometimes also called the executive summary). If you’re here, chances are you’re not quite sure what you need to cover in this section, or how to go about writing it. Fear not – we’ll explain it all in plain language , step by step , with clear examples .

Overview: The Dissertation/Thesis Abstract

• What exactly is a dissertation (or thesis) abstract
• What’s the purpose and function of the abstract
• Why is the abstract so important
• How to write a high-quality dissertation abstract
• Example/sample of a quality abstract
• Quick tips to write a high-quality dissertation abstract

What is an abstract?

Simply put, the abstract in a dissertation or thesis is a short (but well structured) summary that outlines the most important points of your research (i.e. the key takeaways). The abstract is usually 1 paragraph or about 300-500 words long (about one page), but but this can vary between universities.

A quick note regarding terminology – strictly speaking, an abstract and an executive summary are two different things when it comes to academic publications. Typically, an abstract only states what the research will be about, but doesn’t explore the findings – whereas an executive summary covers both . However, in the context of a dissertation or thesis, the abstract usually covers both, providing a summary of the full project.

In terms of content, a good dissertation abstract usually covers the following points:

• The purpose of the research (what’s it about and why’s that important)
• The methodology (how you carried out the research)
• The key research findings (what answers you found)
• The implications of these findings (what these answers mean)

We’ll explain each of these in more detail a little later in this post. Buckle up.

What’s the purpose of the abstract?

A dissertation abstract has two main functions:

The first purpose is to  inform potential readers  of the main idea of your research without them having to read your entire piece of work. Specifically, it needs to communicate what your research is about (what were you trying to find out) and what your findings were . When readers are deciding whether to read your dissertation or thesis, the abstract is the first part they’ll consider. 

The second purpose of the abstract is to  inform search engines and dissertation databases  as they index your dissertation or thesis. The keywords and phrases in your abstract (as well as your keyword list) will often be used by these search engines to categorize your work and make it accessible to users. 

Simply put, your abstract is your shopfront display window – it’s what passers-by (both human and digital) will look at before deciding to step inside. 

Why’s it so important?

The short answer – because most people don’t have time to read your full dissertation or thesis! Time is money, after all…

If you think back to when you undertook your literature review , you’ll quickly realise just how important abstracts are! Researchers reviewing the literature on any given topic face a mountain of reading, so they need to optimise their approach. A good dissertation abstract gives the reader a “TLDR” version of your work – it helps them decide whether to continue to read it in its entirety. So, your abstract, as your shopfront display window, needs to “sell” your research to time-poor readers.

You might be thinking, “but I don’t plan to publish my dissertation”. Even so, you still need to provide an impactful abstract for your markers. Your ability to concisely summarise your work is one of the things they’re assessing, so it’s vital to invest time and effort into crafting an enticing shop window.  

A good abstract also has an added purpose for grad students . As a freshly minted graduate, your dissertation or thesis is often your most significant professional accomplishment and highlights where your unique expertise lies. Potential employers who want to know about this expertise are likely to only read the abstract (as opposed to reading your entire document) – so it needs to be good!

Think about it this way – if your thesis or dissertation were a book, then the abstract would be the blurb on the back cover. For better or worse, readers will absolutely judge your book by its cover .

How to write your abstract

As we touched on earlier, your abstract should cover four important aspects of your research: the purpose , methodology , findings , and implications . Therefore, the structure of your dissertation or thesis abstract needs to reflect these four essentials, in the same order.  Let’s take a closer look at each of them, step by step:

Step 1: Describe the purpose and value of your research

Here you need to concisely explain the purpose and value of your research. In other words, you need to explain what your research set out to discover and why that’s important. When stating the purpose of research, you need to clearly discuss the following:

• What were your research aims and research questions ?
• Why were these aims and questions important?

It’s essential to make this section extremely clear, concise and convincing . As the opening section, this is where you’ll “hook” your reader (marker) in and get them interested in your project. If you don’t put in the effort here, you’ll likely lose their interest.

Step 2: Briefly outline your study’s methodology

In this part of your abstract, you need to very briefly explain how you went about answering your research questions . In other words, what research design and methodology you adopted in your research. Some important questions to address here include:

• Did you take a qualitative or quantitative approach ?
• Who/what did your sample consist of?
• How did you collect your data?
• How did you analyse your data?

Simply put, this section needs to address the “ how ” of your research. It doesn’t need to be lengthy (this is just a summary, after all), but it should clearly address the four questions above.

Need a helping hand?

Step 3: Present your key findings

Next, you need to briefly highlight the key findings . Your research likely produced a wealth of data and findings, so there may be a temptation to ramble here. However, this section is just about the key findings – in other words, the answers to the original questions that you set out to address.

Again, brevity and clarity are important here. You need to concisely present the most important findings for your reader.

Step 4: Describe the implications of your research

Have you ever found yourself reading through a large report, struggling to figure out what all the findings mean in terms of the bigger picture? Well, that’s the purpose of the implications section – to highlight the “so what?” of your research. 

In this part of your abstract, you should address the following questions:

• What is the impact of your research findings on the industry /field investigated? In other words, what’s the impact on the “real world”. 
• What is the impact of your findings on the existing body of knowledge ? For example, do they support the existing research?
• What might your findings mean for future research conducted on your topic?

If you include these four essential ingredients in your dissertation abstract, you’ll be on headed in a good direction.

Example: Dissertation/thesis abstract

Here is an example of an abstract from a master’s thesis, with the purpose , methods , findings , and implications colour coded.

The U.S. citizenship application process is a legal and symbolic journey shaped by many cultural processes. This research project aims to bring to light the experiences of immigrants and citizenship applicants living in Dallas, Texas, to promote a better understanding of Dallas’ increasingly diverse population. Additionally, the purpose of this project is to provide insights to a specific client, the office of Dallas Welcoming Communities and Immigrant Affairs, about Dallas’ lawful permanent residents who are eligible for citizenship and their reasons for pursuing citizenship status . The data for this project was collected through observation at various citizenship workshops and community events, as well as through semi-structured interviews with 14 U.S. citizenship applicants . Reasons for applying for U.S. citizenship discussed in this project include a desire for membership in U.S. society, access to better educational and economic opportunities, improved ease of travel and the desire to vote. Barriers to the citizenship process discussed in this project include the amount of time one must dedicate to the application, lack of clear knowledge about the process and the financial cost of the application. Other themes include the effects of capital on applicant’s experience with the citizenship process, symbolic meanings of citizenship, transnationalism and ideas of deserving and undeserving surrounding the issues of residency and U.S. citizenship. These findings indicate the need for educational resources and mentorship for Dallas-area residents applying for U.S. citizenship, as well as a need for local government programs that foster a sense of community among citizenship applicants and their neighbours.

Practical tips for writing your abstract

When crafting the abstract for your dissertation or thesis, the most powerful technique you can use is to try and put yourself in the shoes of a potential reader. Assume the reader is not an expert in the field, but is interested in the research area. In other words, write for the intelligent layman, not for the seasoned topic expert. 

Start by trying to answer the question “why should I read this dissertation?”

Remember the WWHS.

Make sure you include the  what , why ,  how , and  so what  of your research in your abstract:

• What you studied (who and where are included in this part)
• Why the topic was important
• How you designed your study (i.e. your research methodology)
• So what were the big findings and implications of your research

Keep it simple.

Use terminology appropriate to your field of study, but don’t overload your abstract with big words and jargon that cloud the meaning and make your writing difficult to digest. A good abstract should appeal to all levels of potential readers and should be a (relatively) easy read. Remember, you need to write for the intelligent layman.

Be specific.

When writing your abstract, clearly outline your most important findings and insights and don’t worry about “giving away” too much about your research – there’s no need to withhold information. This is the one way your abstract is not like a blurb on the back of a book – the reader should be able to clearly understand the key takeaways of your thesis or dissertation after reading the abstract. Of course, if they then want more detail, they need to step into the restaurant and try out the menu.

Psst... there’s more!

This post was based on one of our popular Research Bootcamps . If you're working on a research project, you'll definitely want to check this out ...

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19 Comments

This was so very useful, thank you Caroline.

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This was really useful in writing the abstract for my dissertation. Thank you Caroline.

Very clear and helpful information. Thanks so much!

Fabulous information – succinct, simple information which made my life easier after the most stressful and rewarding 21 months of completing this Masters Degree.

Very clear, specific and to the point guidance. Thanks a lot. Keep helping people 🙂

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Thanks for this! Very concise and helpful for my ADHD brain.

I am so grateful for the tips. I am very optimistic in coming up with a winning abstract for my dessertation, thanks to you.

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Writing an abstract - a six point checklist (with samples)

Posted in: abstract , dissertations

The abstract is a vital part of any research paper. It is the shop front for your work, and the first stop for your reader. It should provide a clear and succinct summary of your study, and encourage your readers to read more. An effective abstract, therefore should answer the following questions:

• Why did you do this study or project?
• What did you do and how?
• What did you find?
• What do your findings mean?

So here's our run down of the key elements of a well-written abstract.

• Size - A succinct and well written abstract should be between approximately 100- 250 words.
• Background - An effective abstract usually includes some scene-setting information which might include what is already known about the subject, related to the paper in question (a few short sentences).
• Purpose  - The abstract should also set out the purpose of your research, in other words, what is not known about the subject and hence what the study intended to examine (or what the paper seeks to present).
• Methods - The methods section should contain enough information to enable the reader to understand what was done, and how. It should include brief details of the research design, sample size, duration of study, and so on.
• Results - The results section is the most important part of the abstract. This is because readers who skim an abstract do so to learn about the findings of the study. The results section should therefore contain as much detail about the findings as the journal word count permits.
• Conclusion - This section should contain the most important take-home message of the study, expressed in a few precisely worded sentences. Usually, the finding highlighted here relates to the primary outcomes of the study. However, other important or unexpected findings should also be mentioned. It is also customary, but not essential, to express an opinion about the theoretical or practical implications of the findings, or the importance of their findings for the field. Thus, the conclusions may contain three elements:
• The primary take-home message.
• Any additional findings of importance.
• Implications for future studies.

Example Abstract 2: Engineering Development and validation of a three-dimensional finite element model of the pelvic bone.

Abstract from: Dalstra, M., Huiskes, R. and Van Erning, L., 1995. Development and validation of a three-dimensional finite element model of the pelvic bone. Journal of biomechanical engineering, 117(3), pp.272-278.

And finally...  A word on abstract types and styles

Abstract types can differ according to subject discipline. You need to determine therefore which type of abstract you should include with your paper. Here are two of the most common types with examples.

Informative Abstract

The majority of abstracts are informative. While they still do not critique or evaluate a work, they do more than describe it. A good informative abstract acts as a surrogate for the work itself. That is, the researcher presents and explains all the main arguments and the important results and evidence in the paper. An informative abstract includes the information that can be found in a descriptive abstract [purpose, methods, scope] but it also includes the results and conclusions of the research and the recommendations of the author. The length varies according to discipline, but an informative abstract is usually no more than 300 words in length.

Descriptive Abstract A descriptive abstract indicates the type of information found in the work. It makes no judgements about the work, nor does it provide results or conclusions of the research. It does incorporate key words found in the text and may include the purpose, methods, and scope of the research. Essentially, the descriptive abstract only describes the work being summarised. Some researchers consider it an outline of the work, rather than a summary. Descriptive abstracts are usually very short, 100 words or less.

Adapted from Andrade C. How to write a good abstract for a scientific paper or conference presentation. Indian J Psychiatry. 2011 Apr;53(2):172-5. doi: 10.4103/0019-5545.82558. PMID: 21772657; PMCID: PMC3136027 .

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• USC Libraries
• Research Guides

Organizing Your Social Sciences Research Paper

• 3. The Abstract
• Purpose of Guide
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An abstract summarizes, usually in one paragraph of 300 words or less, the major aspects of the entire paper in a prescribed sequence that includes: 1) the overall purpose of the study and the research problem(s) you investigated; 2) the basic design of the study; 3) major findings or trends found as a result of your analysis; and, 4) a brief summary of your interpretations and conclusions.

Writing an Abstract. The Writing Center. Clarion University, 2009; Writing an Abstract for Your Research Paper. The Writing Center, University of Wisconsin, Madison; Koltay, Tibor. Abstracts and Abstracting: A Genre and Set of Skills for the Twenty-first Century . Oxford, UK: Chandos Publishing, 2010;

Importance of a Good Abstract

Sometimes your professor will ask you to include an abstract, or general summary of your work, with your research paper. The abstract allows you to elaborate upon each major aspect of the paper and helps readers decide whether they want to read the rest of the paper. Therefore, enough key information [e.g., summary results, observations, trends, etc.] must be included to make the abstract useful to someone who may want to examine your work.

How do you know when you have enough information in your abstract? A simple rule-of-thumb is to imagine that you are another researcher doing a similar study. Then ask yourself: if your abstract was the only part of the paper you could access, would you be happy with the amount of information presented there? Does it tell the whole story about your study? If the answer is "no" then the abstract likely needs to be revised.

Farkas, David K. “A Scheme for Understanding and Writing Summaries.” Technical Communication 67 (August 2020): 45-60;  How to Write a Research Abstract. Office of Undergraduate Research. University of Kentucky; Staiger, David L. “What Today’s Students Need to Know about Writing Abstracts.” International Journal of Business Communication January 3 (1966): 29-33; Swales, John M. and Christine B. Feak. Abstracts and the Writing of Abstracts . Ann Arbor, MI: University of Michigan Press, 2009.

Structure and Writing Style

I.  Types of Abstracts

To begin, you need to determine which type of abstract you should include with your paper. There are four general types.

Critical Abstract A critical abstract provides, in addition to describing main findings and information, a judgment or comment about the study’s validity, reliability, or completeness. The researcher evaluates the paper and often compares it with other works on the same subject. Critical abstracts are generally 400-500 words in length due to the additional interpretive commentary. These types of abstracts are used infrequently.

Descriptive Abstract A descriptive abstract indicates the type of information found in the work. It makes no judgments about the work, nor does it provide results or conclusions of the research. It does incorporate key words found in the text and may include the purpose, methods, and scope of the research. Essentially, the descriptive abstract only describes the work being summarized. Some researchers consider it an outline of the work, rather than a summary. Descriptive abstracts are usually very short, 100 words or less. Informative Abstract The majority of abstracts are informative. While they still do not critique or evaluate a work, they do more than describe it. A good informative abstract acts as a surrogate for the work itself. That is, the researcher presents and explains all the main arguments and the important results and evidence in the paper. An informative abstract includes the information that can be found in a descriptive abstract [purpose, methods, scope] but it also includes the results and conclusions of the research and the recommendations of the author. The length varies according to discipline, but an informative abstract is usually no more than 300 words in length.

Highlight Abstract A highlight abstract is specifically written to attract the reader’s attention to the study. No pretense is made of there being either a balanced or complete picture of the paper and, in fact, incomplete and leading remarks may be used to spark the reader’s interest. In that a highlight abstract cannot stand independent of its associated article, it is not a true abstract and, therefore, rarely used in academic writing.

II.  Writing Style

Use the active voice when possible , but note that much of your abstract may require passive sentence constructions. Regardless, write your abstract using concise, but complete, sentences. Get to the point quickly and always use the past tense because you are reporting on a study that has been completed.

Abstracts should be formatted as a single paragraph in a block format and with no paragraph indentations. In most cases, the abstract page immediately follows the title page. Do not number the page. Rules set forth in writing manual vary but, in general, you should center the word "Abstract" at the top of the page with double spacing between the heading and the abstract. The final sentences of an abstract concisely summarize your study’s conclusions, implications, or applications to practice and, if appropriate, can be followed by a statement about the need for additional research revealed from the findings.

Composing Your Abstract

Although it is the first section of your paper, the abstract should be written last since it will summarize the contents of your entire paper. A good strategy to begin composing your abstract is to take whole sentences or key phrases from each section of the paper and put them in a sequence that summarizes the contents. Then revise or add connecting phrases or words to make the narrative flow clearly and smoothly. Note that statistical findings should be reported parenthetically [i.e., written in parentheses].

Before handing in your final paper, check to make sure that the information in the abstract completely agrees with what you have written in the paper. Think of the abstract as a sequential set of complete sentences describing the most crucial information using the fewest necessary words. The abstract SHOULD NOT contain:

• A catchy introductory phrase, provocative quote, or other device to grab the reader's attention,
• Lengthy background or contextual information,
• Redundant phrases, unnecessary adverbs and adjectives, and repetitive information;
• Acronyms or abbreviations,
• References to other literature [say something like, "current research shows that..." or "studies have indicated..."],
• Using ellipticals [i.e., ending with "..."] or incomplete sentences,
• Jargon or terms that may be confusing to the reader,
• Citations to other works, and
• Any sort of image, illustration, figure, or table, or references to them.

Abstract. Writing Center. University of Kansas; Abstract. The Structure, Format, Content, and Style of a Journal-Style Scientific Paper. Department of Biology. Bates College; Abstracts. The Writing Center. University of North Carolina; Borko, Harold and Seymour Chatman. "Criteria for Acceptable Abstracts: A Survey of Abstracters' Instructions." American Documentation 14 (April 1963): 149-160; Abstracts. The Writer’s Handbook. Writing Center. University of Wisconsin, Madison; Hartley, James and Lucy Betts. "Common Weaknesses in Traditional Abstracts in the Social Sciences." Journal of the American Society for Information Science and Technology 60 (October 2009): 2010-2018; Koltay, Tibor. Abstracts and Abstracting: A Genre and Set of Skills for the Twenty-first Century. Oxford, UK: Chandos Publishing, 2010; Procter, Margaret. The Abstract. University College Writing Centre. University of Toronto; Riordan, Laura. “Mastering the Art of Abstracts.” The Journal of the American Osteopathic Association 115 (January 2015 ): 41-47; Writing Report Abstracts. The Writing Lab and The OWL. Purdue University; Writing Abstracts. Writing Tutorial Services, Center for Innovative Teaching and Learning. Indiana University; Koltay, Tibor. Abstracts and Abstracting: A Genre and Set of Skills for the Twenty-First Century . Oxford, UK: 2010; Writing an Abstract for Your Research Paper. The Writing Center, University of Wisconsin, Madison.

Writing Tip

Never Cite Just the Abstract!

Citing to just a journal article's abstract does not confirm for the reader that you have conducted a thorough or reliable review of the literature. If the full-text is not available, go to the USC Libraries main page and enter the title of the article [NOT the title of the journal]. If the Libraries have a subscription to the journal, the article should appear with a link to the full-text or to the journal publisher page where you can get the article. If the article does not appear, try searching Google Scholar using the link on the USC Libraries main page. If you still can't find the article after doing this, contact a librarian or you can request it from our free i nterlibrary loan and document delivery service .

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Frequently asked questions

How long is a dissertation abstract.

An abstract for a thesis or dissertation is usually around 150–300 words. There’s often a strict word limit, so make sure to check your university’s requirements.

Frequently asked questions: Dissertation

The acknowledgements are generally included at the very beginning of your thesis or dissertation, directly after the title page and before the abstract .

If you only used a few abbreviations in your thesis or dissertation, you don’t necessarily need to include a list of abbreviations .

If your abbreviations are numerous, or if you think they won’t be known to your audience, it’s never a bad idea to add one. They can also improve readability, minimising confusion about abbreviations unfamiliar to your reader.

A list of figures and tables compiles all of the figures and tables that you used in your thesis or dissertation and displays them with the page number where they can be found.

A thesis or dissertation outline is one of the most critical first steps in your writing process. It helps you to lay out and organise your ideas and can provide you with a roadmap for deciding what kind of research you’d like to undertake.

Generally, an outline contains information on the different sections included in your thesis or dissertation, such as:

• Your anticipated title
• Your abstract
• Your chapters (sometimes subdivided into further topics like literature review, research methods, avenues for future research, etc.)

The abstract appears on its own page, after the title page and acknowledgements but before the table of contents .

While it may be tempting to present new arguments or evidence in your thesis or disseration conclusion , especially if you have a particularly striking argument you’d like to finish your analysis with, you shouldn’t. Theses and dissertations follow a more formal structure than this.

All your findings and arguments should be presented in the body of the text (more specifically in the discussion section and results section .) The conclusion is meant to summarize and reflect on the evidence and arguments you have already presented, not introduce new ones.

For a stronger dissertation conclusion , avoid including:

• Generic concluding phrases (e.g. “In conclusion…”)
• Weak statements that undermine your argument (e.g. “There are good points on both sides of this issue.”)

Your conclusion should leave the reader with a strong, decisive impression of your work.

The conclusion of your thesis or dissertation shouldn’t take up more than 5-7% of your overall word count.

The conclusion of your thesis or dissertation should include the following:

• A restatement of your research question
• A summary of your key arguments and/or results
• A short discussion of the implications of your research

Research objectives describe what you intend your research project to accomplish.

They summarise the approach and purpose of the project and help to focus your research.

Your objectives should appear in the introduction of your research paper , at the end of your problem statement .

Don’t feel that you have to write the introduction first. The introduction is often one of the last parts of the research paper you’ll write, along with the conclusion.

This is because it can be easier to introduce your paper once you’ve already written the body ; you may not have the clearest idea of your arguments until you’ve written them, and things can change during the writing process .

In a thesis or dissertation, the discussion is an in-depth exploration of the results, going into detail about the meaning of your findings and citing relevant sources to put them in context.

The conclusion is more shorter and more general: it concisely answers your main research question and makes recommendations based on your overall findings.

A dissertation prospectus or proposal describes what or who you plan to research for your dissertation. It delves into why, when, where, and how you will do your research, as well as helps you choose a type of research to pursue. You should also determine whether you plan to pursue qualitative or quantitative methods and what your research design will look like.

It should outline all of the decisions you have taken about your project, from your dissertation topic to your hypotheses and research objectives , ready to be approved by your supervisor or committee.

Note that some departments require a defense component, where you present your prospectus to your committee orally.

A research project is an academic, scientific, or professional undertaking to answer a research question . Research projects can take many forms, such as qualitative or quantitative , descriptive , longitudinal , experimental , or correlational . What kind of research approach you choose will depend on your topic.

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How to Write an Abstract for a Dissertation or Thesis: Guide & Examples

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A dissertation abstract is a brief summary of a dissertation, typically between 150-300 words. It is a standalone piece of writing that gives the reader an overview of the main ideas and findings of the dissertation.

Generally, this section should include:

• Research problem and questions
• Research methodology
• Key findings and results
• Original contribution
• Practical or theoretical implications.

You need to write an excellent abstract for a dissertation or thesis, since it's the first thing a comitteee will review. Continue reading through to learn how to write a dissertation abstract. In this article, we will discuss its purpose, length, structure and writing steps. Moreover, for reference purposes, this article will include abstract examples for a dissertation and thesis and offer extra guidance on top of that.

In case you are in a hurry, feel free to buy dissertation from our professional writers. Our experts are qualified and have solid experience in writing Ph.D. academic works.

What Is a Dissertation Abstract?

Dissertation abstracts, by definition, are summaries of a thesis's content, usually between 200 and 300 words, used to inform readers about the contents of the study in a quick way. A thesis or dissertation abstract briefly overviews the entire thesis. Dissertation abstracts are found at the beginning of every study, providing the research recap, results, and conclusions. It usually goes right after your title page and before your dissertation table of contents . An abstract for a dissertation (alternatively called “précis” further in the article) should clearly state the main topic of your paper, its overall purpose, and any important research questions or findings. It should also contain any necessary keywords that direct readers to relevant information. In addition, it addresses any implications for further research that may stem from its field. Writing strong précis requires you to think carefully, as they are the critical components that attract readers to peruse your paper.

Purpose of a Dissertation or Thesis Abstract

The primary purpose of an abstract in a dissertation or thesis is to give readers a basic understanding of the completed work. Also, it should create an interest in the topic to motivate readers to read further. Writing an abstract for a dissertation is essential for many reasons: 

• Offers a summary and gives readers an overview of what they should expect from your study.
• Provides an opportunity to showcase the research done, highlighting its importance and impact.
• Identifies any unexplored research gaps to inform future studies and direct the current state of knowledge on the topic.

In general, an abstract of a thesis or a dissertation is a bridge between the research and potential readers.

What Makes a Good Abstract for a Dissertation?

Making a good dissertation abstract requires excellent organization and clarity of thought. Proper specimens must provide convincing arguments supporting your thesis. Writing an effective dissertation abstract requires students to be concise and write engagingly. Below is a list of things that makes it outstanding:

• Maintains clear and concise summary style
• Includes essential keywords for search engine optimization
• Accurately conveys the scope of the thesis
• Strictly adheres to the word count limit specified in your instructions
• Written from a third-person point of view
• Includes objectives, approach, and findings
• Uses simple language without jargon
• Avoids overgeneralized statements or vague claims.

How Long Should a Dissertation Abstract Be?

Abstracts should be long enough to convey the key points of every thesis, yet brief enough to capture readers' attention. A dissertation abstract length should typically be between 200-300 words, i.e., 1 page. But usually, length is indicated in the requirements. Remember that your primary goal here is to provide an engaging and informative thesis summary. Note that following the instructions and templates set forth by your university will ensure your thesis or dissertation abstract meets the writing criteria and adheres to all relevant standards.

Dissertation Abstract Structure

Dissertation abstracts can be organized in different ways and vary slightly depending on your work requirements. However, each abstract of a dissertation should incorporate elements like keywords, methods, results, and conclusions. The structure of a thesis or a dissertation abstract should account for the components included below:

• Title Accurately reflects the topic of your thesis.
• Introduction Provides an overview of your research, its purpose, and any relevant background information.
• Methods/ Approach Gives an outline of the methods used to conduct your research.
• Results Summarizes your findings.
• Conclusions Provides an overview of your research's accomplishments and implications.
• Keywords Includes keywords that accurately describe your thesis.

Below is an example that shows how a dissertation abstract looks, how to structure it and where each part is located. Use this template to organize your own summary. 

Things to Consider Before Writing a Dissertation Abstract

There are several things you should do beforehand in order to write a good abstract for a dissertation or thesis. They include:

• Reviewing set requirements and making sure you clearly understand the expectations
• Reading other research works to get an idea of what to include in yours
• Writing a few drafts before submitting your final version, which will ensure that it's in the best state possible.

Write an Abstract for a Dissertation Last

Remember, it's advisable to write an abstract for a thesis paper or dissertation last. Even though it’s always located in the beginning of the work, nevertheless, it should be written last. This way, your summary will be more accurate because the main argument and conclusions are already known when the work is mostly finished - it is incomparably easier to write a dissertation abstract after completing your thesis. Additionally, you should write it last because the contents and scope of the thesis may have changed during the writing process. So, create your dissertation abstract as a last step to help ensure that it precisely reflects the content of your project.

Carefully Read Requirements

Writing dissertation abstracts requires careful attention to details and adherence to writing requirements. Refer to the rubric or guidelines that you were presented with to identify aspects to keep in mind and important elements, such as correct length and writing style, and then make sure to comprehensively include them. Careful consideration of these requirements ensures that your writing meets every criterion and standard provided by your supervisor to increase the chances that your master's thesis is accepted and approved.   

Choose the Right Type of Dissertation Abstracts

Before starting to write a dissertation or thesis abstract you should choose the appropriate type. Several options are available, and it is essential to pick one that best suits your dissertation's subject. Depending on their purpose, there exist 3 types of dissertation abstracts: 

• Informative
• Descriptive

Informative one offers readers a concise overview of your research, its purpose, and any relevant background information. Additionally, this type includes brief summaries of all results and dissertation conclusions .  A descriptive abstract in a dissertation or thesis provides a quick overview of the research, but it doesn't incorporate any evaluation or analysis because it only offers a snapshot of the study and makes no claims.

Critical abstract gives readers an in-depth overview of the research and include an evaluative component. This means that this type also summarizes and analyzes research data, discusses implications, and makes claims about the achievements of your study. In addition, it examines the research data and recounts its implications. 

Choose the correct type of dissertation abstract to ensure that it meets your paper’s demands.

How to Write an Abstract for a Dissertation or Thesis?

Writing a good abstract for a dissertation or thesis is essential as it provides a brief overview of the completed research. So, how to write a dissertation abstract? First of all, the right approach is dictated by an institution's specific requirements. However, a basic structure should include the title, an introduction to your topic, research methodology, findings, and conclusions. Composing noteworthy precis allows you to flaunt your capabilities and grants readers a concise glimpse of the research. Doing this can make an immense impact on those reviewing your paper.

1. Identify the Purpose of Your Study

An abstract for thesis paper or dissertation is mainly dependent on the purpose of your study. Students need to identify all goals and objectives of their research before writing their précis - the reason being to ensure that the investigation’s progress and all its consequent findings are described simply and intelligibly. Additionally, one should provide some background information about their study. A short general description helps your reader acknowledge and connect with the research question. But don’t dive too deep into details, since more details are provided when writing a dissertation introduction . Scholars should write every dissertation abstract accurately and in a coherent way to demonstrate their knowledge and understanding of the area. This is the first section that potential readers will see, and it should serve as a precise overview of an entire document. Therefore, researchers writing abstracts of a thesis or dissertation should do it with great care and attention to details.

2. Discuss Methodology

A writer needs to elaborate on their methodological approach in an abstract of PhD dissertation since it acts as a brief summary of a whole research and should include an explanation of all methods used there. Dissertation and thesis abstracts discuss the research methodology by providing information sufficient enough to understand the underlying research question, data collection methods, and approach employed. Additionally, they should explain the analysis or interpretation of the data. This will help readers to gain a much better understanding of the research process and allow them to evaluate the data quality. Mention whether your methodology is quantitative or qualitative since this information is essential for readers to grasp your study's context and scope. Additionally, comment on the sources used and any other evidence collected. Furthermore, explain why you chose the method in the first place. All in all, addressing methodology is a crucial part of writing abstracts of a thesis or dissertation, as it will allow people to understand exactly how you arrived at your conclusions.

3. Describe the Key Results

Write your abstract for dissertation in a way that includes an overview of the research problem, your proposed solution, and any limitations or constraints you faced. Students need to briefly and clearly describe all key findings from the research. You must ensure that the results mentioned in an abstract of a thesis or dissertation are supported with evidence from body chapters.  Write about any crucial trends or patterns that emerged from the study. They should be discussed in detail, as this information can often provide valuable insight into your topic. Be sure to include any correlations or relationships found as a result of the study. Correlation, in this context, refers to any association between two or more variables.  Finally, write about any implications or conclusions drawn from your results: this is an essential element when writing an abstract for dissertation since it allows readers to firmly comprehend the study’s significance.

4. Summarize an Abstract for a Dissertation

Knowing how to write an abstract for dissertation is critical in conveying your work to a broad audience. Summarizing can be challenging (since precis is a summary in itself), but it is an essential part of any successful work. So, as a final step, conclude this section with a brief overview of the topic, outline the course of your research and its main results, and answer the paper’s central question.  Summarizing an abstract of your dissertation is done to give readers a succinct impression of the entire paper, making an accurate and concise overview of all its key points and consequent conclusions. In every PhD dissertation abstract , wrap up its summary by addressing any unanswered questions and discussing any potential implications of the research.

How to Format an Abstract in Dissertation

Format depends on the style (APA, MLA, Harvard, Chicago), which varies according to your subject's discipline. Style to use is usually mentioned in the instructions, and students should follow them closely to ensure formatting accuracy. These styles have guidelines that inform you about the formatting of titles, headings and subheadings, margins, page numbers, abstracts, and tell what font size and family or line spacing are required. Using a consistent formatting style ensures proper readability and might even influence paper’s overall structure. Another formatting concern to consider when writing dissertation and thesis abstracts is their layout. Most commonly, your paper should have a one-inch margin on all sides with double spacing. Be sure to familiarize yourself with the right guidelines to get the correct information on how to write dissertation abstract in APA format and ensure that it meets formatting standards.

Keywords in a Dissertation Abstract

When writing thesis abstracts, it is essential to include keywords. Keywords are phrases or words that help readers identify main topics of your paper and make it easier for them to find any information they need. Keywords should usually be placed at the end of a dissertation abstract and written in italics. In addition, include keywords that represent your paper's primary research interests and topics. Lastly, use keywords throughout your thesis to ensure that your précis accurately reflect an entire paper's content.

Thesis and Dissertation Abstract Examples

When writing, checking out thesis and dissertation abstracts examples from experts can provide a valuable reference point for structuring and formatting your own précis. When searching for an excellent sample template, engaging the assistance of a professional writer can be highly beneficial. Their expertise and knowledge offer helpful insight into creating an exemplary document that exceeds all expectations. Examples of dissertation abstracts from different topics are commonly available in scholarly journals and websites. We also encourage you to go and search your university or other local library catalogue -  multiple useful samples can surely be found there. From our part, we will attach 2 free examples for inspiration.

Dissertation abstract example

Thesis abstract example

Need a custom summary or a whole work? Contact StudyCrumb and get proficient assistance with PhD writing or dissertation proposal help .

Extra Tips on Writing a Dissertation Abstract

Writing a dissertation or PhD thesis abstract is not an easy task. You must ensure that it accurately reflects your paper's content. In this context, we will provide top-class tips on how to write an abstract in a dissertation or thesis for you to succeed. Combined with an example of a dissertation abstract above, you can rest assured that you'll do everything correctly. Below are extra tips on how to write a thesis abstract:

• Keep it concise, not lengthy - around 300 words.
• Focus on the “what”, “why”, “how”, and “so what” of your research.
• Be specific and concrete: avoid generalization.
• Use simple language: précis should be easy to understand for readers unfamiliar with your topic.
• Provide enough relevant information so your readers can grasp a main idea without necessarily reading your paper in its entirety.
• Write and edit your abstract several times until every sentence is clear and concise.
• Verify accuracy: make sure that précis reflect your content precisely.

Bottom Line on How to Write a Dissertation or Thesis Abstract

The bottom line when it comes to how to write a dissertation abstract is that you basically need to mirror your study's essence on a much lower scale. Specifically, students should keep their précis concise, use simple language, include relevant information, and write several drafts. Don't forget to review your précis and make sure they are precise enough. In addition, make sure to include all keywords so readers can find your paper quickly. You are encouraged to examine several sample dissertation abstracts to understand how to write your own.

Are you still struggling with your abstract? Contact our dissertation writing service and our qualified writers will gladly help you with this uneasy task. They will make sure it is delivered strictly on time and meets all requirements!  

FAQ About Dissertation Abstract Writing

1. why is a dissertation abstract important.

Dissertation abstracts are important because they give readers a brief overview of your research. They succinctly introduce critical information and study’s key points to help readers decide if reading your thesis is worth their time. During indexing, an abstract allows categorizing and filtering papers through keyword searches. Consequently, this helps readers to easily find your paper when searching for information on a specific topic.

2. When should I write an abstract for a dissertation or thesis?

You are supposed to write a dissertation or thesis abstract after completing research and finishing work on your paper. This way, you can write précis that accurately reflects all necessary information without missing any important details. Writing your thesis précis last also lets you provide the right keywords to help readers find your dissertation.

3. What should a dissertation abstract include?

A dissertation abstract should include a research problem, goals and objectives, methods, results, and study implications. Ensure that you incorporate enough information so readers can get an idea of your thesis's content without reading it through. Use relevant keywords to ensure readers can easily find your paper when searching for information on a specific topic.

4. How to write a strong dissertation abstract?

To write a strong abstract for a dissertation, you should state your research problem, write in an active voice, use simple language, and provide relevant information. Additionally, write and edit your précis several times until it is clear and concise, and verify that it accurately mirrors your paper’s content. Reviewing several samples is also helpful for understanding how to write your own.

Joe Eckel is an expert on Dissertations writing. He makes sure that each student gets precious insights on composing A-grade academic writing.

You may also like

What is a dissertation abstract and how do I write one for my PhD?

Feb 12, 2019

There are a lot of posts that talk about how to write an abstract. Most say that you should write your abstract to impress your examiner.

We say that you need to flip things upside down: sure, your examiner will read it and want to see that you’ve written it well, but you should actually have your next boss in mind when you write it.

When you apply for your first academic job, the abstract may be the only part of your thesis that your new boss will read. They may not have the time or energy to read the whole thesis, so the abstract plays a crucial role. You should write it as if you academic career depends on it.

In this guide we talk about how to write an outstanding abstract that will (hopefully) land you a job.

If you haven’t already, make sure you download our PhD Writing Template , which you can use in conjunction with this guide to supercharge your PhD.

What is an abstract?

  This is fairly straightforward stuff, but let us be clear so we are all on the same page.

An abstract is a short summary at the beginning of the PhD that sums up the research, summarises the separate sections of the thesis and outlines the contribution.

It is typically used by those wishing to get a broad understanding of a piece of research prior to reading the entire thesis.

When you apply for your first academic job, the hiring manager will take a look through applicants’ abstracts (as well as your CV and covering letter) to create a shortlist. If you are lucky enough to do well at an interview, your potential new boss will take another look through it before deciding whether to offer you the job.

Why don’t they read the whole thing? Apart from the fact that they’re way too busy to read 200+ pages, a well written abstract actually contains all they need to know. It is a way of letting them see what your research is about, what contribution it makes, what your understanding of the field is and how or whether you will fit into the department.

So, you need to write it well.

But, don’t underestimate how hard it is to write a PhD thesis abstract. You have to condense hundred of pages and years of work into a few hundred words (exactly how many will depend on your university, so double check with them before you start writing).

How do I write a good PhD abstract?

Some blog posts use keywords to summarise the content (this one does, scroll down to see them). The abstract is similar. It’s an extended set of keywords to summarise a complex piece of research.

Above all, your PhD abstract should answer the question: ‘so what’ ? In other words, what is the contribution of your thesis to the field?

If you’ve been using our PhD writing template you’ll know that, to do this, your abstract should address six questions:

• What is the reason for writing the thesis?
• What are the current approaches and gaps in the literature?
• What are your research question(s) and aims?
• Which methodology have you used?
• What are the main findings?
• What are the main conclusions and implications?

One thing that should be obvious is that you can’t write your abstract until the study itself has been written. It’ll typically be the last thing you write (alongside the acknowledgements).

But how can I write a great one?

  The tricky thing about writing a great PhD abstract is that you haven’t got much space to answer the six questions above. There are a few things to consider though that will help to elevate your writing and make your abstract as efficient as possible:

• Give a good first impression by writing in short clear sentences
• Don’t repeat the title in the abstract
• Don’t cite references
• Use keywords from the document
• Respect the word limit
• Don’t be vague – the abstract should be a self contained summary of the research, so don’t introduce ambiguous words or complex terms
• Focus on just four or five essential points, concepts, or findings. Don’t, for example, try to explain your entire theoretical framework
• Edit it carefully. Make sure every word is relevant (you haven’t got room for wasted words) and that each sentence has maximum impact
• Avoid lengthy background information
• Don’t mention anything that isn’t discussed in the thesis
• Avoid overstatements
• Don’t spin your findings, contribution or significance to make your research sound grander or more influential that it actually is

Examples of a good and bad abstract

We can see that the bad abstract fails to answer the six questions posed above. It reads more like a PhD proposal, rather than a summary of a piece of research.

Specifically:

• It doesn’t discuss the reason why the thesis was written
• It doesn’t outline the gaps in the literature
• It doesn’t outline the research questions or aims
• It doesn’t discuss the methods
• It doesn’t discuss the findings
• It doesn’t discuss the conclusions and implications of the research.

It is also too short, lacks adequate keywords and introduces unnecessary detail. The abbreviations and references only serve to confuse the reader and the claim that the thesis will ‘develop a new theory of climate change’ is both vague and over-ambitious. The reader will see through this.

The good abstract though does a much better job at answering the six questions and summarising the research.

• The reason why the thesis was written is stated: ‘We do so to better enable policy makers and academics to understand the nuances of multi-level climate governance’ and….’it informs our theoretical understanding of climate governance by introducing a focus on local government hitherto lacking, and informs our empirical understanding of housing and recycling policy.’
• The gap is clearly defined: ‘The theory has neglected to account for the role of local governments.’
• The research question are laid out: ‘We ask to what extent and in what ways local governments in the UK’…
• The methods are hinted at: ‘Using a case study…’
• The findings are summarised: ‘We show that local governments are both implementers and interpreters of policy. We also show that they make innovative contributions to and influence the direction of national policy.’
• The conclusions and implications are clear: ‘The significance of this study is that it informs our theoretical understanding of climate governance by introducing a focus on local government hitherto lacking, and informs our empirical understanding of housing and recycling policy.’

This abstract is of a much better length, and it fully summarises what the thesis is about. We can see that if someone (i.e. your hiring manager) were to read just this abstract, they’d understand what your thesis is about and the contribution that it makes.

Your PhD thesis. All on one page. 

Use our free PhD structure template to quickly visualise every element of your thesis. 

I can’t summarise my thesis, what do I do?

  We suggest you fill out our PhD Writing Template . We’ve designed it so that you can visualise your PhD on one page and easily see the main components. It’s really easy to use. It asks you a few questions related to each section of your thesis. As you answer them, you develop a synopsis. You can use that synopsis to inform your abstract. If you haven’t downloaded it, you can find it here.

  Like everything related to writing, it takes practice before you get great at writing abstracts. Follow our tips and you’ll have a head start over others.

Remember, you’re not writing your abstract for anyone other than your hiring manager. Make sure it showcases the best of your research and shows your skills as both a researcher and a writer.

If you’re struggling, send us your abstract by email and we’ll have give you free advice on how to improve it.

Hello, Doctor…

Sounds good, doesn’t it?  Be able to call yourself Doctor sooner with our five-star rated How to Write A PhD email-course. Learn everything your supervisor should have taught you about planning and completing a PhD.

Now half price. Join hundreds of other students and become a better thesis writer, or your money back. 

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Hello! I am a first year PhD student and I am interested in your Thesis writing course. However, I don’t have Paypal, thus I would like to know if there is an alternative way for you to get paid. I hope so, because I have been “following” you and I think the course can be really useful for me 🙂 Hope to hear from you soon. Best wishes, Belén Merelas

Thanks for the comment – I have sent you an email.

Hello! I am a Master’s student and I have applied for a PhD position. The professors have asked me to write a short abstract-like text, based on a brief sentence they will send me, related to the project study. How am I supposed to write a text like that when I don’t have the whole paper, the methods, results etc? Thank you in advance!

Hi Maria. I’m afraid that without knowing more about your topic or subject I am unable to give you advice on this. Sorry I can’t help in the way you may have hoped.

Thank u so much… your tips have really helped me to broaden my scope on the idea of how to write an abstract for my Ph.D. course. This is so thoughtful of you… The article is very informative and helpful…Thanks again!

I’m so pleased. Thanks for your lovely words. They’re music to my ears.

Very insightful Thanks

Glad you think so. Good luck with the writing.

Thank you so much Doc

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How Long Should an Abstract Be? Word Count & Length

The abstract is perhaps the most important section of your research paper. Apart from the title, it may be the only part of the paper anyone reads. Whether they read further  depends in part on how good an impression your abstract makes .

The abstract may also be the only part of your paper that has a word limit. Most word limits specify a maximum of  between 250 and 300 words , and some journals require that abstracts be as short as 150 words. Writing a great abstract is almost an art—but writing an abstract that meets word limits is, well, a  science .

 Why do journals impose abstract word limits?

There are several reasons your abstract needs to be short and concise. Journals want readers to buy your article, and they want other researchers to cite your study in their own articles. More citations means a higher impact factor for the journal. The best way to sell your study is to grab the reader’s attention with a great title and abstract. Finally, there is the issue of space. Journals want your abstract to fit on half a page so that a reader won’t have to scroll to read all of it.

When it comes to abstracts, less is more. Only essential information needs to be presented. A short, powerful abstract will draw readers into your research and help the journal attract more readers and receive more citations. The trick is how to trim your abstract to get under the word limit. Here are some time- and researcher-tested ways to pull that off.

Omit Needless Words and Adverbs

In their acclaimed guide to English writing,  The Elements of Style , William Strunk, Jr, and E. B. White teach the key to meeting abstract word limits: Omit needless words. Many writers, especially academic writers, pepper their writing with words that simply don’t need to be there.

A “hedge” is a word or phrase you use when you are concerned about making a claim instead of stating a fact. It’s always a good idea to be careful, especially in academic writing, but many authors use hedge words when they don’t need to. Among the most overused hedge words are the verbs “seem” and “appear.” In the examples below, you’ll see why taking away the hedge words does not alter the meaning.

Hedge : Maroney syndrome  seems   to impair quality of life. No Hedge : Maroney syndrome  impairs   quality of life.

Hedge : Ibuprofen  appears   to diminish pain in most patients. No Hedge : Ibuprofen  diminishes   pain in most patients.

In both pairs, the first and second sentences have essentially the same meaning, except that the second sentence omits the hedge word. Notice how the second examples are more powerful and straightforward without this extra verbiage.

Cutting out needless adverbs is another easy way to limit the number of words in an abstract.

With needless adverbs : We  slowly and carefully  dissected the vagus nerve. Without needless adverbs : We dissected the vagus nerve.

By definition, “dissection” is slow and careful (or  should  be!). Removing the needless adverbs “slowly” and “carefully’ leaves you with a sentence with the same meaning and three fewer words. Same your adverbs for situations in which they truly impact the meaning or have an impact on the reader or interpretation.

Remove Awkward and Unnecessary Transitions

Conjunctive adverbs are better known as “ transition terms ,” and although they can be very useful in creating structure and flow within the body of a paper, in the abstract they are often redundant or even incorrectly used. Among the more commonly used conjunctive adverbs are: however, moreover, therefore, furthermore, additionally, and thus.

The conjunction “moreover” is perhaps the most commonly used needless adverb in scientific papers. Some writers use it because they believe it makes them sound more “academic.” Others use it because they may know that it’s a grammatical faux-pas to start a sentence with the conjunction “And.” Nevertheless, “moreover” can virtually  always  be removed from a sentence without altering the meaning. Watch what happens when we remove the word “moreover from these sentences.

With a transition :  Moreover , we dissected the vagus nerve. Without a transition : We dissected the vagus nerve.

In the instance above, “moreover” does not really make sense as a transition term. Even other transition terms (furthermore, therefore, in addition, etc.) would be somewhat unnecessary when discussing how the study or experiment was performed.

With a transition :  Furthermore , patients with Boney-Maroney syndrome are likely to experience hot flashes and fatigue. Without a transition : Patients with Boney-Maroney syndrome are likely to experience hot flashes and fatigue.

Note that these two sentences have exactly the same meaning with and without the transition term “furthermore.”  These transitions can be much more useful in the longer sections of the paper’s body, especially in the Introduction and Discussion/Conclusion sections.

Use the Active Voice Instead of Passive Voice

One way to shorten your abstract is to apply a rule you might have learned in primary school: use active voice instead of passive voice . In active voice constructions, the subject carries the action. In passive voice, the subject is acted upon, usually by an unnamed actor. Scientists seem to be in love with the passive voice, as it can be found in many papers, simply adding to the word count and making the writing less engaging. Because of this longstanding convention, many believe it makes them sound more “scientific.” Others shun active voice because they feel as though it is too personal. That is a shame. Your sentences will often sound more convincing and powerful in active voice, as the following examples demonstrate:

Passive voice : Pituitary cells  were grown  in dishes that had been subjected to irradiation (12 words). Active voice :  We grew  pituitary cells in irradiated dishes (7 words). Passive voice : Three-hundred and forty-five patients  who had undergone  ovariectomy at our institution  were enrolled  in the present study (17 words). Active voice :  We enrolled   345 patients whom we had ovariectomized (eight words).

Remember, studies don’t conduct themselves;  scientists  conduct studies. Avoid using the passive voice in the abstract—save it for the Methods section!

Do not Include Statistical Methods or Findings in the Abstract

Most scientific articles include statistics. Usually, the statistical methods are described in detail in the Methods section of a paper. But many authors feel compelled for some reason to mention statistics in the abstract, perhaps to get the details out first. But unless your paper is primarily about statistics, it is best to keep statistics out of the abstract and stick to language that expresses the most important use and findings of the study. Not only do statistics add to your word count, but they also interrupt the flow of your argument. You certainly do not need to tell the reader what statistical tests you used or the version of the statistics program you used—that is what the Methods section is for. And never go into detail about EXACTLY which findings your study yielded—that is what the Results section is for.

Consent, Approval, and Other Info That Doesn’t Belong in an Abstract

Some authors place information about patient consent and institutional review board approval in the abstract. Whereas this information is indeed essential, it is not necessary to put it in the abstract. Like statistics, consent and approval statements interrupt the flow of your argument. Readers expect to find information about consent and approval in the Methods section. Leaving this out of your abstract will certainly free up your space to describe the importance of your study.

Abstract Word Limits Are not Targets

Keep in mind that a limit of 250 words does not mean that you should attempt to come as close as possible to the limit. The best abstracts include all essential information well before reaching word limit. Use the above tips to help you create a leaner, tighter abstract that will hook readers and entice them to read your full study.

For more helpful suggestions on academic and research writing, check out the links below or visit the Wordvice Academic Resources page. And be sure to receive professional  English editing services , including  paper editing services , for your journal manuscript before submitting it to journal editors.

Wordvice Resources

• Writing the Results Section for a Research Paper
• How to Write a Literature Review
• Research Writing Tips: How to Draft a Powerful Discussion Section
• How to Captivate Journal Readers with a Strong Introduction
• Tips That Will Make Your Abstract a Success!
• APA In-Text Citation Guide for Research Writing
•   “Abstract Guide for Research Papers.”  (Academic Conferences and Publishing International Limited)
• “How many words should be in the abstract?”  (Research Gate)
• Strunk and White.  The Elements of Style. ( PDF)
• “Organizing Your Social Science Research Paper: The Abstract.”  (USC Libraries)

Secondary Menu

Preparing the dissertation abstract.

Job advertisements vary in what they request upfront. Minimally, you will be asked to send a letter of application and vita. Some ads also specifically request a dissertation abstract.  Whether or not an abstract is explicitly solicited as part of the initial application, you can and should send a dissertation abstract along with your application letter and CV.

Like the letter of application, you should strictly observe the conventions on the length and formatting of the dissertation abstract. The finished document should be  two pages ,  single-spaced, in normal (12 point) font, with standard margins . You should avoid going over two pages (even if it’s just by a line or two). Conversely, it is not to your advantage to shorten it further: when you’re limited to two pages, it doesn’t look good if it appears that you don’t have sufficient material to fill them.

The initial one or two paragraphs of the abstract (approximately half a page) should offer an overview of the project: its issues and methods, other relevant work engaged, stakes and contexts. While you might want to repeat a key sentence or formulation that appears in your letter of application, the opening to the abstract should  not  simply reproduce the paragraph on the dissertation included in your letter. Think of these opening paragraphs instead as an opportunity to flesh out and supplement what you say in the letter. For example, you might want to foreground a different strand of your argument (something that complements without simply repeating what was headlined in the letter). This opening is also an opportunity to situate your project more fully in relation to relevant scholarship in your field(s). Where the description in your letter most likely had to sound a single note (as in, my dissertation takes up X), here you have the relative luxury of space to detail (the interrelation between) a set of concerns (as in, my dissertation takes up X as it illuminates Y in the context of Z). You might want to conclude these introductory paragraphs by discussing your aspirations for the project– what you aim to achieve; how you hope your intervention will advance this or that scholarly conversation.

The body of the abstract should consist of a  detailed chapter outline , in which you explain the main argument (or preoccupation) of individual chapters, specific materials engaged, rationale for that selection, and analytical yield. This is your opportunity to demonstrate the design of the project and, ideally, to show how individual chapters comprise a series of discrete discussions or investigations that cumulatively amount to more than the sum of their parts. This is also your opportunity to foreground your innovation in the choice or juxtaposition of texts, or perhaps original archival research accomplished.

A few cautions: If you choose to enter the job market before finishing and defending the dissertation, you should be sure that individual chapter descriptions are nevertheless complete and persuasive. You should be able to generate a solid and compelling account even of a chapter you may not yet have composed, or finished composing. (If you can’t generate a coherent and detailed description of  all  your chapters, completed and in progress, it is definitely too early to apply.) Think of the dissertation abstract as an occasion to map out both the broad contours of your dissertation (the overarching concerns; the kind of intervention you seek to make; the readers you aim to hail) and the specific pathways through which you pursue your inquiry. Search committees will notice if portions of the map are missing or vague. Conversely, a finely crafted, readable map will help to persuade them that you can be finished and defended before the start of the next academic year.

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• Formatting Your Dissertation
• Introduction

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On this page:

Language of the Dissertation

Page and text requirements, body of text, tables, figures, and captions, dissertation acceptance certificate, copyright statement.

• Table of Contents

Front and Back Matter

Supplemental material, dissertations comprising previously published works, top ten formatting errors, further questions.

• Related Contacts and Forms

When preparing the dissertation for submission, students must follow strict formatting requirements. Any deviation from these requirements may lead to rejection of the dissertation and delay in the conferral of the degree.

The language of the dissertation is ordinarily English, although some departments whose subject matter involves foreign languages may accept a dissertation written in a language other than English.

Most dissertations are 100 to 300 pages in length. All dissertations should be divided into appropriate sections, and long dissertations may need chapters, main divisions, and subdivisions.

• 8½ x 11 inches, unless a musical score is included
• At least 1 inch for all margins
• Body of text: double spacing
• Block quotations, footnotes, and bibliographies: single spacing within each entry but double spacing between each entry
• Table of contents, list of tables, list of figures or illustrations, and lengthy tables: single spacing may be used

Fonts and Point Size

Use 10-12 point size. Fonts must be embedded in the PDF file to ensure all characters display correctly. 

Recommended Fonts

If you are unsure whether your chosen font will display correctly, use one of the following fonts: 

If fonts are not embedded, non-English characters may not appear as intended. Fonts embedded improperly will be published to DASH as-is. It is the student’s responsibility to make sure that fonts are embedded properly prior to submission. 

Instructions for Embedding Fonts

To embed your fonts in recent versions of Word, follow these instructions from Microsoft:

• Click the File tab and then click Options .
• In the left column, select the Save tab.
• Clear the Do not embed common system fonts check box.

For reference, below are some instructions from ProQuest UMI for embedding fonts in older file formats:

To embed your fonts in Microsoft Word 2010:

• In the File pull-down menu click on Options .
• Choose Save on the left sidebar.
• Check the box next to Embed fonts in the file.
• Click the OK button.
• Save the document.

Note that when saving as a PDF, make sure to go to “more options” and save as “PDF/A compliant”

To embed your fonts in Microsoft Word 2007:

• Click the circular Office button in the upper left corner of Microsoft Word.
• A new window will display. In the bottom right corner select Word Options . 
• Choose Save from the left sidebar.

Using Microsoft Word on a Mac:

Microsoft Word 2008 on a Mac OS X computer will automatically embed your fonts while converting your document to a PDF file.

If you are converting to PDF using Acrobat Professional (instructions courtesy of the Graduate Thesis Office at Iowa State University):  

• Open your document in Microsoft Word. 
• Click on the Adobe PDF tab at the top. Select "Change Conversion Settings." 
• Click on Advanced Settings. 
• Click on the Fonts folder on the left side of the new window. In the lower box on the right, delete any fonts that appear in the "Never Embed" box. Then click "OK." 
• If prompted to save these new settings, save them as "Embed all fonts." 
• Now the Change Conversion Settings window should show "embed all fonts" in the Conversion Settings drop-down list and it should be selected. Click "OK" again. 
• Click on the Adobe PDF link at the top again. This time select Convert to Adobe PDF. Depending on the size of your document and the speed of your computer, this process can take 1-15 minutes. 
• After your document is converted, select the "File" tab at the top of the page. Then select "Document Properties." 
• Click on the "Fonts" tab. Carefully check all of your fonts. They should all show "(Embedded Subset)" after the font name. 
•  If you see "(Embedded Subset)" after all fonts, you have succeeded.

The font used in the body of the text must also be used in headers, page numbers, and footnotes. Exceptions are made only for tables and figures created with different software and inserted into the document.

Tables and figures must be placed as close as possible to their first mention in the text. They may be placed on a page with no text above or below, or they may be placed directly into the text. If a table or a figure is alone on a page (with no narrative), it should be centered within the margins on the page. Tables may take up more than one page as long as they obey all rules about margins. Tables and figures referred to in the text may not be placed at the end of the chapter or at the end of the dissertation.

• Given the standards of the discipline, dissertations in the Department of History of Art and Architecture and the Department of Architecture, Landscape Architecture, and Urban Planning often place illustrations at the end of the dissertation.

Figure and table numbering must be continuous throughout the dissertation or by chapter (e.g., 1.1, 1.2, 2.1, 2.2, etc.). Two figures or tables cannot be designated with the same number. If you have repeating images that you need to cite more than once, label them with their number and A, B, etc. 

Headings should be placed at the top of tables. While no specific rules for the format of table headings and figure captions are required, a consistent format must be used throughout the dissertation (contact your department for style manuals appropriate to the field).

Captions should appear at the bottom of any figures. If the figure takes up the entire page, the caption should be placed alone on the preceding page, centered vertically and horizontally within the margins.

Each page receives a separate page number. When a figure or table title is on a preceding page, the second and subsequent pages of the figure or table should say, for example, “Figure 5 (Continued).” In such an instance, the list of figures or tables will list the page number containing the title. The word “figure” should be written in full (not abbreviated), and the “F” should be capitalized (e.g., Figure 5). In instances where the caption continues on a second page, the “(Continued)” notation should appear on the second and any subsequent page. The figure/table and the caption are viewed as one entity and the numbering should show correlation between all pages. Each page must include a header.

Landscape orientation figures and tables must be positioned correctly and bound at the top so that the top of the figure or table will be at the left margin. Figure and table headings/captions are placed with the same orientation as the figure or table when on the same page. When on a separate page, headings/captions are always placed in portrait orientation, regardless of the orientation of the figure or table. Page numbers are always placed as if the figure were vertical on the page.

If a graphic artist does the figures, Harvard Griffin GSAS will accept lettering done by the artist only within the figure. Figures done with software are acceptable if the figures are clear and legible. Legends and titles done by the same process as the figures will be accepted if they too are clear, legible, and run at least 10 or 12 characters per inch. Otherwise, legends and captions should be printed with the same font used in the text.

Original illustrations, photographs, and fine arts prints may be scanned and included, centered between the margins on a page with no text above or below.

Use of Third-Party Content

In addition to the student's own writing, dissertations often contain third-party content or in-copyright content owned by parties other than you, the student who authored the dissertation. The Office for Scholarly Communication recommends consulting the information below about fair use, which allows individuals to use in-copyright content, on a limited basis and for specific purposes, without seeking permission from copyright holders.

Because your dissertation will be made available for online distribution through DASH , Harvard's open-access repository, it is important that any third-party content in it may be made available in this way.

Fair Use and Copyright 

What is fair use?

Fair use is a provision in copyright law that allows the use of a certain amount of copyrighted material without seeking permission. Fair use is format- and media-agnostic. This means fair use may apply to images (including photographs, illustrations, and paintings), quoting at length from literature, videos, and music regardless of the format. 

How do I determine whether my use of an image or other third-party content in my dissertation is fair use?  

There are four factors you will need to consider when making a fair use claim.

1) For what purpose is your work going to be used?

• Nonprofit, educational, scholarly, or research use favors fair use. Commercial, non-educational uses, often do not favor fair use.
• A transformative use (repurposing or recontextualizing the in-copyright material) favors fair use. Examining, analyzing, and explicating the material in a meaningful way, so as to enhance a reader's understanding, strengthens your fair use argument. In other words, can you make the point in the thesis without using, for instance, an in-copyright image? Is that image necessary to your dissertation? If not, perhaps, for copyright reasons, you should not include the image.  

2) What is the nature of the work to be used?

• Published, fact-based content favors fair use and includes scholarly analysis in published academic venues. 
• Creative works, including artistic images, are afforded more protection under copyright, and depending on your use in light of the other factors, may be less likely to favor fair use; however, this does not preclude considerations of fair use for creative content altogether.

3) How much of the work is going to be used?  

• Small, or less significant, amounts favor fair use. A good rule of thumb is to use only as much of the in-copyright content as necessary to serve your purpose. Can you use a thumbnail rather than a full-resolution image? Can you use a black-and-white photo instead of color? Can you quote select passages instead of including several pages of the content? These simple changes bolster your fair use of the material.

4) What potential effect on the market for that work may your use have?

• If there is a market for licensing this exact use or type of educational material, then this weighs against fair use. If however, there would likely be no effect on the potential commercial market, or if it is not possible to obtain permission to use the work, then this favors fair use. 

For further assistance with fair use, consult the Office for Scholarly Communication's guide, Fair Use: Made for the Harvard Community and the Office of the General Counsel's Copyright and Fair Use: A Guide for the Harvard Community .

What are my options if I don’t have a strong fair use claim? 

Consider the following options if you find you cannot reasonably make a fair use claim for the content you wish to incorporate:

• Seek permission from the copyright holder. 
• Use openly licensed content as an alternative to the original third-party content you intended to use. Openly-licensed content grants permission up-front for reuse of in-copyright content, provided your use meets the terms of the open license.
• Use content in the public domain, as this content is not in-copyright and is therefore free of all copyright restrictions. Whereas third-party content is owned by parties other than you, no one owns content in the public domain; everyone, therefore, has the right to use it.

For use of images in your dissertation, please consult this guide to Finding Public Domain & Creative Commons Media , which is a great resource for finding images without copyright restrictions. 

Who can help me with questions about copyright and fair use?

Contact your Copyright First Responder . Please note, Copyright First Responders assist with questions concerning copyright and fair use, but do not assist with the process of obtaining permission from copyright holders.

Pages should be assigned a number except for the Dissertation Acceptance Certificate . Preliminary pages (abstract, table of contents, list of tables, graphs, illustrations, and preface) should use small Roman numerals (i, ii, iii, iv, v, etc.). All pages must contain text or images.  

Count the title page as page i and the copyright page as page ii, but do not print page numbers on either page .

For the body of text, use Arabic numbers (1, 2, 3, 4, 5, etc.) starting with page 1 on the first page of text. Page numbers must be centered throughout the manuscript at the top or bottom. Every numbered page must be consecutively ordered, including tables, graphs, illustrations, and bibliography/index (if included); letter suffixes (such as 10a, 10b, etc.) are not allowed. It is customary not to have a page number on the page containing a chapter heading.

• Check pagination carefully. Account for all pages.

A copy of the Dissertation Acceptance Certificate (DAC) should appear as the first page. This page should not be counted or numbered. The DAC will appear in the online version of the published dissertation. The author name and date on the DAC and title page should be the same. 

The dissertation begins with the title page; the title should be as concise as possible and should provide an accurate description of the dissertation. The author name and date on the DAC and title page should be the same. 

• Do not print a page number on the title page. It is understood to be page  i  for counting purposes only.

A copyright notice should appear on a separate page immediately following the title page and include the copyright symbol ©, the year of first publication of the work, and the name of the author:

© [ year ] [ Author’s Name ] All rights reserved.

Alternatively, students may choose to license their work openly under a  Creative Commons  license. The author remains the copyright holder while at the same time granting up-front permission to others to read, share, and (depending on the license) adapt the work, so long as proper attribution is given. (By default, under copyright law, the author reserves all rights; under a Creative Commons license, the author reserves some rights.)

• Do  not  print a page number on the copyright page. It is understood to be page  ii  for counting purposes only.

An abstract, numbered as page  iii , should immediately follow the copyright page and should state the problem, describe the methods and procedures used, and give the main results or conclusions of the research. The abstract will appear in the online and bound versions of the dissertation and will be published by ProQuest. There is no maximum word count for the abstract. 

• double-spaced
• left-justified
• indented on the first line of each paragraph
• The author’s name, right justified
• The words “Dissertation Advisor:” followed by the advisor’s name, left-justified (a maximum of two advisors is allowed)
• Title of the dissertation, centered, several lines below author and advisor

Dissertations divided into sections must contain a table of contents that lists, at minimum, the major headings in the following order:

• Front Matter
• Body of Text
• Back Matter

Front matter includes (if applicable):

• acknowledgements of help or encouragement from individuals or institutions
• a dedication
• a list of illustrations or tables
• a glossary of terms
• one or more epigraphs.

Back matter includes (if applicable):

• bibliography
• supplemental materials, including figures and tables
• an index (in rare instances).

Supplemental figures and tables must be placed at the end of the dissertation in an appendix, not within or at the end of a chapter. If additional digital information (including audio, video, image, or datasets) will accompany the main body of the dissertation, it should be uploaded as a supplemental file through ProQuest ETD . Supplemental material will be available in DASH and ProQuest and preserved digitally in the Harvard University Archives.

As a matter of copyright, dissertations comprising the student's previously published works must be authorized for distribution from DASH. The guidelines in this section pertain to any previously published material that requires permission from publishers or other rightsholders before it may be distributed from DASH. Please note:

• Authors whose publishing agreements grant the publisher exclusive rights to display, distribute, and create derivative works will need to seek the publisher's permission for nonexclusive use of the underlying works before the dissertation may be distributed from DASH.
• Authors whose publishing agreements indicate the authors have retained the relevant nonexclusive rights to the original materials for display, distribution, and the creation of derivative works may distribute the dissertation as a whole from DASH without need for further permissions.

It is recommended that authors consult their publishing agreements directly to determine whether and to what extent they may have transferred exclusive rights under copyright. The Office for Scholarly Communication (OSC) is available to help the author determine whether she has retained the necessary rights or requires permission. Please note, however, the Office of Scholarly Communication is not able to assist with the permissions process itself.

• Missing Dissertation Acceptance Certificate.  The first page of the PDF dissertation file should be a scanned copy of the Dissertation Acceptance Certificate (DAC). This page should not be counted or numbered as a part of the dissertation pagination.
• Conflicts Between the DAC and the Title Page.  The DAC and the dissertation title page must match exactly, meaning that the author name and the title on the title page must match that on the DAC. If you use your full middle name or just an initial on one document, it must be the same on the other document.  
• Abstract Formatting Errors. The advisor name should be left-justified, and the author's name should be right-justified. Up to two advisor names are allowed. The Abstract should be double spaced and include the page title “Abstract,” as well as the page number “iii.” There is no maximum word count for the abstract. 
•  The front matter should be numbered using Roman numerals (iii, iv, v, …). The title page and the copyright page should be counted but not numbered. The first printed page number should appear on the Abstract page (iii). 
• The body of the dissertation should be numbered using Arabic numbers (1, 2, 3, …). The first page of the body of the text should begin with page 1. Pagination may not continue from the front matter. 
• All page numbers should be centered either at the top or the bottom of the page.
• Figures and tables Figures and tables must be placed within the text, as close to their first mention as possible. Figures and tables that span more than one page must be labeled on each page. Any second and subsequent page of the figure/table must include the “(Continued)” notation. This applies to figure captions as well as images. Each page of a figure/table must be accounted for and appropriately labeled. All figures/tables must have a unique number. They may not repeat within the dissertation.
• Any figures/tables placed in a horizontal orientation must be placed with the top of the figure/ table on the left-hand side. The top of the figure/table should be aligned with the spine of the dissertation when it is bound. 
• Page numbers must be placed in the same location on all pages of the dissertation, centered, at the bottom or top of the page. Page numbers may not appear under the table/ figure.
• Supplemental Figures and Tables. Supplemental figures and tables must be placed at the back of the dissertation in an appendix. They should not be placed at the back of the chapter. 
• Permission Letters Copyright. permission letters must be uploaded as a supplemental file, titled ‘do_not_publish_permission_letters,” within the dissertation submission tool.
•  DAC Attachment. The signed Dissertation Acceptance Certificate must additionally be uploaded as a document in the "Administrative Documents" section when submitting in Proquest ETD . Dissertation submission is not complete until all documents have been received and accepted.
• Overall Formatting. The entire document should be checked after all revisions, and before submitting online, to spot any inconsistencies or PDF conversion glitches.
• You can view dissertations successfully published from your department in DASH . This is a great place to check for specific formatting and area-specific conventions.
• Contact the  Office of Student Affairs  with further questions.

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How Long Should an Abstract be?

By Laura Brown on 14th February 2019

The length of an abstract may vary depending on the type of research. However, ideally, an abstract should be something around 100 to 500 words . Now, there are many factors that play an important role in identifying how long should an abstract be for a dissertation.

In this post, we will discuss the ideal length of your abstract. But, to be aware of the required length of an abstract, it is mandatory to understand the word “ abstract ” and be aware of the question, “ is abstract included in word count? “.

What Is An Abstract?

The brief summary of any paper is termed as an abstract. It can contain all the main points of the paper. That’s the reason authors of essay writing service consider it the most vital part of any composition. In some publications, it is also termed a synopsis or a precis . A good abstract is one that gives all the information of the paper. It gives the idea to the reader whether they should read the complete paper or not.

Is Abstract Included In Word Count?

Everything before the main text, including abstracts, acknowledgements, content tables, executive summaries, etc., is not included in the word count of the dissertation. Similarly, all the components after the main text, i.e., bibliography, references, and appendices, are not included in the word count.

Now, to write a good abstract, a few things must be kept in mind. An important point to consider is the word count of an abstract. It should not exceed more than the required limit. The length of an abstract varies with the discipline, the total word count and the requirement of the publisher.

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How Long Should A Dissertation Abstract Be?

The length of an abstract fluctuates with the requirement. However, the typical length of an abstract is from 100 to 500 words, but it is suggested that an abstract should not be more than one page. Rarely it can go more than one page but just fewer words.

According to the APA style manual, the suggested word count in an abstract should be between 150 to 250 words . However, some professors may have definite word requirements, so it is better to ask. Also, the abstract should be written in paragraph format.

Most MLA abstracts range between 150 – 250 words . It is also said that too-long abstracts are useless because they do not give specific information about the complete written paper.

In Harvard styles, abstracts mostly range from 100 to 300 words in length . But it is better to ask the professor because some universities have their own requirements for the abstract.

As per AMA style guidelines, the abstract length is restricted to 175 words . The abstract in AMA style should give key components of the complete research.

In Chicago style, the synopsis or abstract word count must remain below 300 . But it is compulsory to put all the essential points in the synopsis.

In A Scientific Paper

Every paper has its own requirements, where the scientific paper is concerned; the abstract length of scientific papers are limited to 250 words maximum. So, it is better to write fewer words than the given limit.

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10000-Word Dissertations

As mentioned above, the word count of an abstract also varies with the size of the dissertation. Do students often look for the answers on how long an abstract should be for a 10000-word dissertation? Well, if your dissertation is around 10000 words, then the abstract should be 300 – 350 words long . It is because such dissertations contain much information, and making the summary of all the information requires some more words.

For A Conference Paper

As the abstract is a snapshot of the complete paper, it should be concise and informative. The requirement of length of an abstract paper varies with the publisher’s requirement. However, the suggested range is a maximum of 250 words .

Thesis / Dissertation

After completing the dissertation of the thesis, the last part should be the abstract. It gives a brief idea and highlights the main points of the whole dissertation. It usually embraces the reader to read the rest of the dissertation. So as not to take much time for the reader, the abstract should be 200 to 350 words in range. Also, it is suggested not to write the abstract in the future tense.

Journal Article

The range of abstracts of journal articles is between 75 to 150 words . It is good to present all the information in the most concise way, so it is suggested not to go beyond the limit.

The abstract of the lab report should be one paragraph, like 100 – 200 words . The report abstract should contain important facets of the report. It can include purpose, key findings, significance and conclusion.

For A Literature Review

The summary of a literature review should be according to the length of the literature. Typically, the literature review ranges from 3000 to 5000 words, so the abstract should be between 100 – 150 words . The abstract must not evaluate the original work but should just summarise it.

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How Long Should An Abstract Be For A Research Paper?

The abstract recaps the major and important aspects of the whole research paper, and it should not be more than 300 words . However, it is good that words should be less than 300 words.

For A Presentation

The length of the presentation abstract should be around 200 to 250 words . The abstract for the presentation should contain concise and informative information.

Any Other Paper

The abstract of the paper should be 100 – 500 words long . Just make sure that all essential points should be covered in the same abstract.

How To Write An Abstract Under Limited Words

While writing an abstract, you will always need to keep an eye on the word limit. We have very often observed abstracts being returned to students for making them shorter. It is easy for the reviewers to ask you to be more concise, but when you have already summed up your hardships and workings of some months or years in a 200-300 word statement, it becomes arduous to reduce it more.

We have come up with some simple tips that will help you to write an abstract within a word limit.

Bonus Tip: Keep tracking your abstract word count by enabling the word count feature in MS Word or pressing ctrl+shift+c if you are working in Google Docs.

An impressive way to start your abstract is by writing a draft. Keep in consideration your complete paper and the whole journey. There is no need to be concerned about the number of words at this stage. The first draft is more about understanding and papering down the essential aspects of your paper.

Creating First Draft

• Extract the objectives from the paper’s introduction and conclusion from the discussion.
• Highlight the information from the methodology section and make sure it is relevant.
• Bracket the findings from the result section.
• Combine the above-highlighted information into a single paragraph.
• Now, condense this information based on research keywords without explaining the methods used.
• Delete extra words or any irrelevant background information.
• Revise the paragraph to convey only essential information.

Don’ts Of Writing An Abstract

• Avoid writing information that is not in the original paper.
• Do not add abbreviations until a term appears two or more times.
• Skip background information, detailed methodology and literature review.
• Omit bibliography, citation, references, graphs and tables.

Revision & Editing

• Finally, work on the conciseness of the abstract.
• Check for the flow of English and logical sentences.
• Look for grammatical errors and make suitable corrections.

With the help of these tips and the word guide provided in the article, you will be able to understand how many words an abstract should be and create an eye-catching abstract for your paper. Still, if you face any difficulty, don’t forget to concern our experts.

What is an abstract?

The abstract is a brief summary of the paper.

Does abstract count in the word count of the paper?

No, the abstract is not counted with the word count of the paper.

How long is an abstract for a dissertation?

Typically an abstract should be around 100 to 500 words.

• APA: https://www.verywellmind.com/how-to-write-an-abstract-2794845
• MLA: https://www.wikihow.com/Write-an-Abstract-in-MLA-Style
• Harvard: https://gsas.harvard.edu/degree-requirements/dissertations/formatting-your-dissertation
• AMA: https://www.ama.org/journal-of-international-marketing-submission-guidelines/
• Chicago: https://www.ieee-pvsc.org/PVSC46/authors-abstracts.php
• Scientific Paper: https://www.sciencebuddies.org/science-fair-projects/science-fair/how-to-write-a-science-fair-project-abstract
• 10,000 Words Dissertation: https://www.sfu.ca/~jcnesbit/HowToWriteAbstract.htm
• Conference Paper: https://www.ul.ie/ctl/sites/default/files/how_to_write_an_abstract_for_a_conference_paper.pdf
• Lab Report: https://advice.writing.utoronto.ca/types-of-writing/lab-report/
• Research Paper: http://libguides.usc.edu/writingguide/abstract
• Presentation: https://study.com/academy/lesson/how-to-write-an-abstract-for-a-presentation.html

Laura Brown, a senior content writer who writes actionable blogs at Crowd Writer.

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We can be reached by phone at (951) 827-3315.  Messages are retrieved often throughout the business day.

PhD Dissertation and Master's Thesis Filing Checklist

The order below is meant to be a suggestion for  best practice.  You may find that the order of completion differs in your own case, particularly steps 5-11.  Feel free to contact us if you have additional questions about any of the items listed.

Master's students  must file an Application for Candidacy for Master's Degree  no later than the first day of the quarter  in which they plan to graduate.  The Application for Candidacy for Master's Degree  is accessed through R'Grad  and must be in the Graduate Dean's queue by the posted deadline  to be considered.

It is expected that PhD students will have completed the oral qualifying exam and advanced to candidacy prior to filing the dissertation. 

PhD and Master's students must also submit a separate graduation application through  R'Web  by Monday of week 4 of the quarter they plan to graduate. See the  Graduation Procedures  page for specific deadlines and instructions.

Reviewing the format guide is the first step in preparing your manuscript for submission.  It explains all aspects of the submission and graduation requirements.  Please read it carefully and review the sample pages.  Ensure that your preliminary pages match the samples.  You may find the format guide on the  Filing Resources page. Microsoft Word and LaTex templates are also available to assist you.    

For additional formatting help and information, including templates and samples, visit  Filing Resources .

If your manuscript contains previously published information, you may need to acquire approval to reprint it. 

For additional information about copyright and fair use in your dissertation, visit  Copyright Resources .

The Graduate Academic Affairs office holds workshops each quarter to help students understand the requirements. The workshops are typically held in week 5 but be sure to check your R'Mail for announcements. Attending a format workshop is highly recommended. The workshop video and slides can be found on the  Filing Resources  page. 

The last day to file your manuscript is typically the last business day of the quarter.  Deadlines for the current year are posted in a chart on the Graduation Procedures page.  To meet the deadline, the final version of the dissertation/thesis and all additional paperwork, including the completed Signature Approval Page and Final Defense Form (both submitted via R'Grad ), must be in the Graduate Dean queue by 12:00pm (noon) on the posted deadline .

The Signature Approval Page and Final Defense form links can be found on the Petitions and Forms page of this web site for both Master's and PhD students. 

Every student planning to file and graduate must submit a dissertation/thesis for format review  at least two weeks  prior to the  final filing deadline . The format review is uploaded via the  ProQuest ETD website .  Please complete all the required screens and SUBMIT your document online.  For additional information visit the  ProQuest ETD FAQ page .  Graduate Academic Affairs staff will review your submission to identify any formatting issues and will communicate with you via email regarding necessary changes to the document.  You may be asked to upload your document multiple times.  You will be notified once the formatting has been approved and no further changes are needed.  This is an important step to ensure your document is ready by the  posted deadline .  

Please do not be concerned that submitting this rough draft to ProQuest will result in it being published.  You will have the opportunity to submit a final version.  The Graduate Division Academic Affairs staff will submit the approved final version to ProQuest once you have completed all graduation procedures. 

ProQuest offers students the opportunity to order bound copies of the dissertation at the time of the format review submission.  Please note that this is an optional service and that there are other ways to order printed copies of the dissertation such as UCR's Creative Services or your neighborhood print/copy shop.  If you do order copies through ProQuest, please be aware that it will take several months for the copies to be prepared and shipped to you.  ProQuest will not begin processing your order until the documents are uploaded from UCR which may take 6-8 weeks from the end of the quarter in which you graduate.

Many of your questions may be answered by visiting the  ProQuest ETD FAQ page .

If your program requires a final defense, you must submit proof of its completion via R'Grad . To meet the deadline the Final Defense Form (submitted via R'Grad ) must be in the Graduate Dean queue by 12:00pm (noon) on the posted deadline . If your final defense has been waived, the Final Defense petition is still required. Your committee will simply select "Waived" as their final defense decision. The approval of your Final Defense is separate from the Signature Approval Page (see step 7) in your dissertation. Both must be submitted via R'Grad  and must be in the Graduate Dean queue by 12:00pm (noon) on the posted deadline . 

The Signature Approval Page is a critical part of your final document.  On this page, your committee gives their final approval of the written dissertation/thesis document.  Please make sure to allow enough time to obtain all the signatures prior to 12:00pm (noon) on the final filing deadline.  All committee members  must  digitally sign on the R'Grad   signature approval page.   Signature approval pages will not be accepted by any other method.  Be aware of your committee members' schedules and make plans to accommodate this requirement! 

To meet the deadline, the Signature Approval Page must be in the Graduate Dean queue in R'Grad  by 12:00pm (noon) on the posted deadline .   

The Signature Approval Page that you include in your digital dissertation in ProQuest will not include signatures.

A Signature Page template for inclusion in your document may be found on the  Filing Resources  page.

In addition to the Final Defense form and Signature Approval Page, PhD students are expected to submit two exit surveys.  Both surveys are completed online. You do not have to submit anything extra to us to show completion. Master's students will submit the Final Defense form (if a defense is required) and the Signature Approval Page. To meet the deadline, the Final Defense Form and Signature approval page must be in the Graduate Dean queue (via R'Grad ) by 12:00pm (noon) on the  posted deadline .

A complete list and links to the paperwork can be found on our  Filing Resources page.

After uploading your dissertation/thesis for a format review to the  ProQuest ETD website , you will receive an email from the Graduate Academic Affairs office. The email will include a review of the requirements for graduation and final submission. You should receive the email within 24 hours of submitting your document.  If you do not receive this email, please check your junk email folder or contact Graduate Academic Affairs.  

Complete any changes requested in the format review and by your committee.  When the document is complete, return to the  ProQuest ETD website  to submit the final version of your dissertation/thesis.  When logging back in, choose the "revise" option. Once you submit the final version, you will not be permitted to make additional changes to the document, so take all precautions! 

Please be aware of all  filing deadlines  to be sure that you file your dissertation/thesis document, the Signature Approval Page, and the Final Defense Form in plenty of time to meet the deadline for the quarter in which you expect to receive your degree.  Deadlines are  strictly  enforced. 

To meet the deadline, the final version of the dissertation/thesis and all additional paperwork, including the completed Signature Approval Page and Final Defense Form (both submitted via R'Grad ), must be in the Graduate Dean queue by 12:00pm (noon) on the posted deadline .

For information about what happens to your document after submission, visit our   ProQuest ETD FAQ page.

Your diploma will be mailed to your permanent address in R'Web approximately 2 months after your degree conferral date.  Any questions about the diploma should be directed to [email protected] .  You may also visit the Registrar's web site for more information. Transcripts - both official and unofficial - with your degree conferral noted - will be ready approximately 4 weeks after your degree conferral date.  Official transcripts may be ordered through R'Web .  Unofficial transcripts may be accessed from your Student Profile in R'Web .

If you wish to participate in the commencement ceremony (offered in June each year), you must verify your eligibility and submit your intent to participate.  Information for graduate students regarding Commencement and the requirements for participation can be found on the  Commencement Information  page. The main  UCR Commencement  page has information about the schedule of ceremonies, tickets, and much more.

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A Reassessment of Sodium Correction Rates and Hospital Length of Stay Accounting for Admission Diagnosis

• Find this author on Google Scholar
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• ORCID record for Eric Raphael Gottlieb
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Background Recent studies have challenged assumptions about slow correction of severe hyponatremia and have shown that rapid correction is associated with shorter hospital length of stay. However, the confounding effect of admission diagnosis has not been fully explored. The objective of this study was to determine whether rapid correction is still associated with shorter length of stay when controlling for admission diagnosis.

Methods This retrospective cohort study is based on the Medical Information Mart for Intensive Care, including data from both MIMIC-III (2001-2012) and MIMIC-IV (2008-2019). Patients were identified who presented to the hospital with initial sodium <120 mEq/L and were categorized according to total sodium correction achieved in the first day (<6 mEq/L; 6-10 mEq/L; >10 mEq/L). Linear regression was used to assess for an association between correction rate and hospital length of stay, and to determine if this association was significant when controlling for admission diagnosis classifications based on diagnosis related groups (DRGs).

Results There were 636 patients included in this study. Median [IQR] hospital length of stay was 7 [4, 11] days. Patients had a median [IQR] initial sodium value of 117 [114, 118] mEq/L and final sodium value of 124 [119, 128] mEq/L. In a univariate linear regression, the highest rate of correction (>10 mEq/L) was associated with a shorter length of stay than a moderate rate of correction (coef. −2.363, 95% CI [−4.710, −0.017], p=0.048), but the association was not significant when controlling for admission diagnosis group (coef. −1.685, 95% CI [−3.836, 0.467], p=0.125).

Conclusions Faster sodium correction was not associated with shorter length of stay when controlling for admission diagnosis categories, suggesting that the disease state confounds this association. While some patients may be discharged earlier if sodium is corrected more rapidly, others may not benefit or may be harmed by this strategy.

Competing Interest Statement

The authors have declared no competing interest.

Funding Statement

LAC was supported by the National Institutes of Health NIBIB R01 (EB017205).

Author Declarations

I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained.

The details of the IRB/oversight body that provided approval or exemption for the research described are given below:

The Medical Information Mart for Intensive Care (MIMIC-III/IV): https://mimic.mit.edu/ . This is available to all researchers with an appropriate research plan and human subjects training (e.g. CITI).

I confirm that all necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived, and that any patient/participant/sample identifiers included were not known to anyone (e.g., hospital staff, patients or participants themselves) outside the research group so cannot be used to identify individuals.

I understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance).

I have followed all appropriate research reporting guidelines, such as any relevant EQUATOR Network research reporting checklist(s) and other pertinent material, if applicable.

Data Availability

All data used in this manuscript are available online at https://mimic.mit.edu/ .

Abbreviations

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Supplementary Material

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NOTE: Your email address is requested solely to identify you as the sender of this article.

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Article Contents

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Association between the length of in vitro embryo culture, mode of ART, and the initial endogenous hCG rise in ongoing singleton pregnancies

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C Brockmeier, M B Borgstrøm, K Madsen, A Pinborg, N L Freiesleben, A Zedeler, M R Petersen, M L Grøndahl, P F Svendsen, Association between the length of in vitro embryo culture, mode of ART, and the initial endogenous hCG rise in ongoing singleton pregnancies, Human Reproduction , 2024;, deae100, https://doi.org/10.1093/humrep/deae100

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Is there an association between the length of in vitro culture, mode of ART and the initial endogenous hCG rise, in cycles with a foetal heartbeat after single embryo transfer (ET) and implantation?

Both the length of in vitro culture and the mode of ART have an impact on the initial endogenous rise in hCG in singleton pregnancies.

Different factors have been identified to alter the kinetics of hCG in pregnancies. Current studies show conflicting results regarding the kinetics of hCG after different types of ART (fresh vs frozen ET (FET)), the inclusion or not of preimplantation genetic testing (PGT), and the length of time in in vitro culture.

This was a multicentre cohort study, using prospectively collected data derived from 4938 women (5524 treatment cycles) undergoing IUI (cycles, n = 608) or ART (cycles, n = 4916) treatments, resulting a in singleton ongoing pregnancy verified by first-trimester ultrasound scan. Data were collected from the Danish Medical Data Centre, used by the three participating Danish public fertility clinics at Copenhagen University hospitals: Herlev Hospital, Hvidovre Hospital, and Rigshospitalet, from January 2014 to December 2021.

The fresh ET cycles included cleavage-stage (2 or 3 days in vitro ) and blastocyst (5 days in vitro ) transfers. FET cycles included cleavage-stage (3 days in vitro before cryopreservation) or blastocyst (5 or 6 days in vitro before cryopreservation) transfers. The IUI cycles represented no time in vitro . To attain a comparable interval for serum-hCG (s-hCG), the ovulation induction time was identical: 35–37 h before oocyte retrieval or IUI. The conception day was considered as: the insemination day for pregnancies conceived after IUI, the oocyte retrieval day for fresh ET, or the transfer day minus 3 or 5 as appropriate for FET of Day 3 or 5 embryos. Multiple linear regression analysis was used, including days post-conception for the hCG measurement as a covariate, and was adjusted for the women's age, the cause of infertility, and the centre. For FET, a sensitivity analysis was used to adjust for endometrial preparation.

The study totally includes 5524 cycles: 2395 FET cycles, 2521 fresh ET cycles, and 608 IUI cycles. Regarding the length of in vitro culture, with IUI as reference (for no time in in vitro culture), we found a significantly lower s-hCG in pregnancies achieved after fresh ET (cleavage-stage ET or blastocyst transfer). S-hCG was 18% (95% CI: 13–23%, P  < 0.001) lower after fresh cleavage-stage ET, and 23% (95% CI: 18–28%, P  < 0.001) lower after fresh blastocyst transfer compared to IUI. In FET cycles, s-hCG was significantly higher after blastocyst transfers compared to cleavage-stage FET, respectively, 26% (95% CI: 13–40%, P  < 0.001) higher when cryopreserved on in vitro Day 5, and 14% (95% CI: 2–26%, P  = 0.02) higher when cryopreserved on in vitro Day 6 as compared to Day 3. Regarding the ART treatment type, s-hCG after FET blastocyst transfer (Day 5 blastocysts) cycles was significantly higher, 33% (95% CI: 27–45%, P  < 0.001), compared to fresh ET (Day 5 blastocyst), while there was no difference between cleavage-stage FET (Days 2 + 3) and fresh ET (Days 2 + 3). S-hCG was 12% (95% CI: 4–19%, 0.005) lower in PGT FET (Day 5 blastocysts) cycles as compared to FET cycles without PGT (Day 5 blastocysts).

The retrospective design is a limitation which introduces the risk of possible bias and confounders such as embryo score, parity, and ovarian stimulation.

This study elucidates how practices in medically assisted reproduction treatment are associated with the hCG kinetics, underlining a potential impact of in vitro culture length and mode of ART on the very early embryo development and implantation. The study provides clinicians knowledge that the type of ART used may be relevant to take into account when evaluating s-hCG for the prognosis of the pregnancy.

No funding was received for this study. AP has received consulting fees, research grants, or honoraria from the following companies: Preglem, Novo Nordisk, Ferring Pharmaceuticals, Gedeon Richter, Cryos, Merck A/S, and Organon. AZ has received grants and honoraria from Gedeon Richter. NLF has received grants from Gedeon Richter, Merck A/S, and Cryos. MLG has received honoraria fees or research grants from Gedeon Richter, Merck A/S, and Cooper Surgical. CB has received honoraria from Merck A/S. MB has received research grants and honoraria from IBSA. MPR, KM, and PVS all report no conflicts of interest.

The study was registered and approved by the Danish Protection Agency, Capital Region, Denmark (Journal-nr.: 21019857). No approval was required from the regional ethics committee according to Danish law.

• artificial insemination
• chorionic gonadotropin
• embryo stage 3
• genetic screening
• cytokinesis
• transfer technique

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