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How to Write an Abstract | Steps & Examples

Published on February 28, 2019 by Shona McCombes . Revised on November 11, 2022 by Eoghan Ryan.

How to Write an Abstract

An abstract is a short summary of a longer work (such as a thesis ,  dissertation or research paper ). The abstract concisely reports the aims and outcomes of your research, so that readers know exactly what your paper is about.

Although the structure may vary slightly depending on your discipline, your abstract should describe the purpose of your work, the methods you’ve used, and the conclusions you’ve drawn.

One common way to structure your abstract is to use the IMRaD structure. This stands for:

Abstracts are usually around 100–300 words, but there’s often a strict word limit, so make sure to check the relevant requirements.

In a dissertation or thesis , include the abstract on a separate page, after the title page and acknowledgements but before the table of contents .

Table of contents

Abstract example, when to write an abstract, step 1: introduction, step 2: methods, step 3: results, step 4: discussion, tips for writing an abstract, frequently asked questions about abstracts.

Hover over the different parts of the abstract to see how it is constructed.

This paper examines the role of silent movies as a mode of shared experience in the US during the early twentieth century. At this time, high immigration rates resulted in a significant percentage of non-English-speaking citizens. These immigrants faced numerous economic and social obstacles, including exclusion from public entertainment and modes of discourse (newspapers, theater, radio).

Incorporating evidence from reviews, personal correspondence, and diaries, this study demonstrates that silent films were an affordable and inclusive source of entertainment. It argues for the accessible economic and representational nature of early cinema. These concerns are particularly evident in the low price of admission and in the democratic nature of the actors’ exaggerated gestures, which allowed the plots and action to be easily grasped by a diverse audience despite language barriers.

Keywords: silent movies, immigration, public discourse, entertainment, early cinema, language barriers.

You will almost always have to include an abstract when:

It’s easiest to write your abstract last, right before the proofreading stage, because it’s a summary of the work you’ve already done. Your abstract should:

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Start by clearly defining the purpose of your research. What practical or theoretical problem does the research respond to, or what research question did you aim to answer?

You can include some brief context on the social or academic relevance of your dissertation topic , but don’t go into detailed background information. If your abstract uses specialized terms that would be unfamiliar to the average academic reader or that have various different meanings, give a concise definition.

After identifying the problem, state the objective of your research. Use verbs like “investigate,” “test,” “analyze,” or “evaluate” to describe exactly what you set out to do.

This part of the abstract can be written in the present or past simple tense  but should never refer to the future, as the research is already complete.

Next, indicate the research methods that you used to answer your question. This part should be a straightforward description of what you did in one or two sentences. It is usually written in the past simple tense, as it refers to completed actions.

Don’t evaluate validity or obstacles here — the goal is not to give an account of the methodology’s strengths and weaknesses, but to give the reader a quick insight into the overall approach and procedures you used.

Next, summarize the main research results . This part of the abstract can be in the present or past simple tense.

Depending on how long and complex your research is, you may not be able to include all results here. Try to highlight only the most important findings that will allow the reader to understand your conclusions.

Finally, you should discuss the main conclusions of your research : what is your answer to the problem or question? The reader should finish with a clear understanding of the central point that your research has proved or argued. Conclusions are usually written in the present simple tense.

If there are important limitations to your research (for example, related to your sample size or methods), you should mention them briefly in the abstract. This allows the reader to accurately assess the credibility and generalizability of your research.

If your aim was to solve a practical problem, your discussion might include recommendations for implementation. If relevant, you can briefly make suggestions for further research.

If your paper will be published, you might have to add a list of keywords at the end of the abstract. These keywords should reference the most important elements of the research to help potential readers find your paper during their own literature searches.

Be aware that some publication manuals, such as APA Style , have specific formatting requirements for these keywords.

It can be a real challenge to condense your whole work into just a couple of hundred words, but the abstract will be the first (and sometimes only) part that people read, so it’s important to get it right. These strategies can help you get started.

Read other abstracts

The best way to learn the conventions of writing an abstract in your discipline is to read other people’s. You probably already read lots of journal article abstracts while conducting your literature review —try using them as a framework for structure and style.

You can also find lots of dissertation abstract examples in thesis and dissertation databases .

Reverse outline

Not all abstracts will contain precisely the same elements. For longer works, you can write your abstract through a process of reverse outlining.

For each chapter or section, list keywords and draft one to two sentences that summarize the central point or argument. This will give you a framework of your abstract’s structure. Next, revise the sentences to make connections and show how the argument develops.

Write clearly and concisely

A good abstract is short but impactful, so make sure every word counts. Each sentence should clearly communicate one main point.

To keep your abstract or summary short and clear:

If you’re struggling to edit down to the required length, you can get help from expert editors with Scribbr’s professional proofreading services .

Check your formatting

If you are writing a thesis or dissertation or submitting to a journal, there are often specific formatting requirements for the abstract—make sure to check the guidelines and format your work correctly. For APA research papers you can follow the APA abstract format .

Checklist: Abstract

The word count is within the required length, or a maximum of one page.

The abstract appears after the title page and acknowledgements and before the table of contents .

I have clearly stated my research problem and objectives.

I have briefly described my methodology .

I have summarized the most important results .

I have stated my main conclusions .

I have mentioned any important limitations and recommendations.

The abstract can be understood by someone without prior knowledge of the topic.

You've written a great abstract! Use the other checklists to continue improving your thesis or dissertation.

An abstract is a concise summary of an academic text (such as a journal article or dissertation ). It serves two main purposes:

Abstracts are often indexed along with keywords on academic databases, so they make your work more easily findable. Since the abstract is the first thing any reader sees, it’s important that it clearly and accurately summarizes the contents of your paper.

An abstract for a thesis or dissertation is usually around 200–300 words. There’s often a strict word limit, so make sure to check your university’s requirements.

The abstract is the very last thing you write. You should only write it after your research is complete, so that you can accurately summarize the entirety of your thesis , dissertation or research paper .

Avoid citing sources in your abstract . There are two reasons for this:

There are some circumstances where you might need to mention other sources in an abstract: for example, if your research responds directly to another study or focuses on the work of a single theorist. In general, though, don’t include citations unless absolutely necessary.

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

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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:

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:

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.

“The growing economic resemblance of spouses has contributed to rising inequality by increasing the number of couples in which there are two high- or two low-earning partners. [Annotation for the previous sentence: The first sentence introduces the topic under study (the “economic resemblance of spouses”). This sentence also implies the question underlying this research study: what are the various causes—and the interrelationships among them—for this trend?] The dominant explanation for this trend is increased assortative mating. Previous research has primarily relied on cross-sectional data and thus has been unable to disentangle changes in assortative mating from changes in the division of spouses’ paid labor—a potentially key mechanism given the dramatic rise in wives’ labor supply. [Annotation for the previous two sentences: These next two sentences explain what previous research has demonstrated. By pointing out the limitations in the methods that were used in previous studies, they also provide a rationale for new research.] We use data from the Panel Study of Income Dynamics (PSID) to decompose the increase in the correlation between spouses’ earnings and its contribution to inequality between 1970 and 2013 into parts due to (a) changes in assortative mating, and (b) changes in the division of paid labor. [Annotation for the previous sentence: The data, research and analytical methods used in this new study.] Contrary to what has often been assumed, the rise of economic homogamy and its contribution to inequality is largely attributable to changes in the division of paid labor rather than changes in sorting on earnings or earnings potential. Our findings indicate that the rise of economic homogamy cannot be explained by hypotheses centered on meeting and matching opportunities, and they show where in this process inequality is generated and where it is not.” (p. 985) [Annotation for the previous two sentences: The major findings from and implications and significance of this study.]

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.

“From the mid-1970s through the mid-1980s, a network of young urban migrant men created an underground pulp fiction publishing industry in the city of Dar es Salaam. [Annotation for the previous sentence: The first sentence introduces the context for this research and announces the topic under study.] As texts that were produced in the underground economy of a city whose trajectory was increasingly charted outside of formalized planning and investment, these novellas reveal more than their narrative content alone. These texts were active components in the urban social worlds of the young men who produced them. They reveal a mode of urbanism otherwise obscured by narratives of decolonization, in which urban belonging was constituted less by national citizenship than by the construction of social networks, economic connections, and the crafting of reputations. This article argues that pulp fiction novellas of socialist era Dar es Salaam are artifacts of emergent forms of male sociability and mobility. In printing fictional stories about urban life on pilfered paper and ink, and distributing their texts through informal channels, these writers not only described urban communities, reputations, and networks, but also actually created them.” (p. 210) [Annotation for the previous sentences: The remaining sentences in this abstract interweave other essential information for an abstract for this article. The implied research questions: What do these texts mean? What is their historical and cultural significance, produced at this time, in this location, by these authors? The argument and the significance of this analysis in microcosm: these texts “reveal a mode or urbanism otherwise obscured . . .”; and “This article argues that pulp fiction novellas. . . .” This section also implies what previous historical research has obscured. And through the details in its argumentative claims, this section of the abstract implies the kinds of methods the author has used to interpret the novellas and the concepts under study (e.g., male sociability and mobility, urban communities, reputations, network. . . ).]

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.

“Several studies have reported reprogramming of fibroblasts into induced cardiomyocytes; however, reprogramming into proliferative induced cardiac progenitor cells (iCPCs) remains to be accomplished. [Annotation for the previous sentence: The first sentence announces the topic under study, summarizes what’s already known or been accomplished in previous research, and signals the rationale and goals are for the new research and the problem that the new research solves: How can researchers reprogram fibroblasts into iCPCs?] Here we report that a combination of 11 or 5 cardiac factors along with canonical Wnt and JAK/STAT signaling reprogrammed adult mouse cardiac, lung, and tail tip fibroblasts into iCPCs. The iCPCs were cardiac mesoderm-restricted progenitors that could be expanded extensively while maintaining multipo-tency to differentiate into cardiomyocytes, smooth muscle cells, and endothelial cells in vitro. Moreover, iCPCs injected into the cardiac crescent of mouse embryos differentiated into cardiomyocytes. iCPCs transplanted into the post-myocardial infarction mouse heart improved survival and differentiated into cardiomyocytes, smooth muscle cells, and endothelial cells. [Annotation for the previous four sentences: The methods the researchers developed to achieve their goal and a description of the results.] Lineage reprogramming of adult somatic cells into iCPCs provides a scalable cell source for drug discovery, disease modeling, and cardiac regenerative therapy.” (p. 354) [Annotation for the previous sentence: The significance or implications—for drug discovery, disease modeling, and therapy—of this reprogramming of adult somatic cells into iCPCs.]

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:

how to write abstract phd thesis

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how to write abstract phd thesis

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:

how to write abstract phd thesis

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:

Another way to think of this structure is:

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:

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

Feb 12, 2019

write a phd thesis abstract

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?

how to write abstract phd thesis

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:

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:

Examples of a good and bad abstract

how to write abstract phd thesis

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 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.

how to write abstract phd thesis

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

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.

how to write abstract phd thesis

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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10 comments.

Belén

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

Dr. Max Lempriere

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

MARIA ELENI TAXOPOULOU

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.

Anna H. Smith

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.

Owurayere

Very insightful Thanks

Glad you think so. Good luck with the writing.

Sobia Akbar

Hello ! Sir I am student of M.Phil English Literature. I have no idea how to write Literature review, Research methodology and theoretical framework of the Novel The Family Tree by Sehrish Hussain. Sir Can you please wrote this literature review , research methodology and theoretical framework of this novel. The deadline of my work submission is 28 December. My Topic of research is voilence, homelessness and microaggression in the novel The Family Tree.

Peter Manyoni

Thank you so much Doc

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How to Write a Thesis Abstract

Just when you thought you’d almost finished your thesis, there’s yet another hurdle: the abstract. Although it’s only around 300 words, this chunk of text can be surprisingly challenging. And you don’t want any more challenges at this stage. In this post, I’ll explain the purpose of the thesis abstract and also provide a step-by-step guide on how to distil that monster thesis into a perfect summary.

What’s the purpose of the thesis abstract?

Other than giving you an unwelcome task on your todo list, the thesis abstract serves two main purposes:

There’s a good chance your abstract might shift slightly in response to your viva and any subsequent questions. In which case, you can update the abstract that’s included with the final version of your thesis.

How do you structure a thesis abstract?

Well, it depends partly on your discipline and topic. Broadly, though, this is how it might break down:

It’s following the pattern of why , what , how , and then why again

The why question is absolutely pivotal to your thesis.

Unlike the blurb on a novel, you do want to give away the plot. Your examiners and readers aren’t looking for surprises – they want to find out the ending in advance and then follow your path towards it.

And don’t cheat by stuffing your abstract with quotes from other authors – they should live in your literature review. The abstract is all about your research.

Once you’ve squeezed out your abstract, you might even have a clearer idea of your thesis. This will help enormously with your viva, although that’s a challenge for another day.

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Thesis Abstract Writing Guidelines

Tips on how to write dissertation abstract.

Results and Conclusion

Thesis abstract process of writing, dissertation / thesis abstract examples, undergraduate level thesis abstract example, graduate level thesis abstract example.

Thesis abstract is an essential part of the dissertation paper. It is a summary of a complete work. It gives readers a chance to discover the key points of your dissertation, its research chapter, methodology and results part. Writing a proper abstract is important. Students use various techniques and guidelines to perform a perfect thesis abstract. Proper structure and of thesis dissertation is crucial. It should answer all the study’s questions and be written to identify a major element of a dissertation or thesis paper. Also check other thesis writing tips that will lead you to success or contact our thesis writing service to get professional help with Ph.D. work.

Thesis abstract (same as dissertation abstract ) answers the main questions of an entire paper. This short summary is a single page of text. It needs to show key methods used in a work, problems analyzed and gathered outcomes of a complex research work. This kind of academic assignment requires profound knowledge. People, who read abstracts, prefer those summaries that remain short, but very informative, with presented limitations in research and clear study results.

How to write the abstract of a thesis ? Thesis abstract is a small version of your dissertation or thesis . This small description ensures a better understanding of an entire paper, discovers the present condition of analyzed problems, distinguishes main objectives and determines existing expectations. A profound analysis of a major question is requested. Abstract needs to be less than five percent of the dissertation. Students write thesis abstracts of a proper length, get information for the summary using their own personal background information, knowledge and analyses’ fallouts.

Thesis abstract includes main analyzed objectives, compound research questions , problem statements, detailed dissertation methodology , and conclusions. Abstract needs to include source references and acronyms. It allows describing the top point of a dissertation paper providing a good understanding of the studied subjects and discovering numerous outcomes. Key theories and hypotheses are requested parts. They bring needed thesis abstract accurate form and allow saving time for this essential part flawless completion. Don't forget to check out  thesis abstract examples provided by our   professional thesis writers at the end of this article.

Writing a proper summary requires a good knowledge of an analyzed theme, valuable background information, improved writing and analytical skills. Advanced analytical skills allow performing its professional version. Key theories need to be a part of the short summary, showing main objectives of conducted analyses and research works. Proper thesis abstract format includes the following major elements:

The beginning of abstract needs to include general information. It draws readers’ attention, allows them discovering key research work’ objectives and outcomes of conducted studies when reading a single summary. However, don't confude an abstract with an executive summary format . Checking introduction, people get main information about conducted work. It is a kind of dissertation’s professional review. Writing a thesis abstract takes time for performing and must be performed after the entire dissertation paper is complete. It is clever to write it in such a way. It saves precious time and efforts used for editing in future.

Thesis abstract has a limit of words and describes the major purpose of research works, writer’s contribution to assigned problem-solving history. Many scientists have made great discoveries in their dissertations. Today, students face the same challenges. Numerous investigations are conducted with an aim to answer main questions of dissertation paper and provide appropriate indications. The level of papers’ difficulty depends on a scientist’s personal characteristics. They mostly include research skills and general knowledge.

Three key elements of a Thesis Abstract 

Begin by clearly defining the purpose of your research. What practical or theoretical problem does the research respond to, or what research question did you aim to answer? You can include some brief context on the social or academic relevance of your topic, but don’t go into detailed background information.

After identifying the problem, state the objective of your research. Use verbs like investigate, test, analyze  or evaluate to describe exactly what you set out to do. This part of the abstract can be written in the present or past simple tense, but should never refer to the future, as the research is already complete.

After - mention the research methods that you used to answer your question. This part should be a direct description of what you did in one or two sentences. It is usually written in the past simple tense as it refers to completed actions. 

There is no need to evaluate validity or obstacles you might have encountered in this part - the goal is not to give an account of the methodology strengths and weaknesses, but to give the reader a quick insight into the overall approach and procedures you used. Mention whether you have used quantitative or qualitative methods . 

Next - summarize the main research results. This part of the abstract can be in the present or past simple tense. Depending on how long and complex your research is, you may not be able to include all results here. Try to highlight only the most important findings that will allow the reader to understand your conclusions.

Finally, provide the main conclusion in thesis : what is your answer to the problem or question? The reader should finish with a clear understanding of the central point that your research has proved or argued. Conclusions are usually written in the present simple tense. If your aim was to solve a practical problem, the conclusions might include recommendations for implementation. If relevant, you can briefly make suggestions for further research.

The literature review brings additional identifications and valuable sources of information. Writing down titles and authors of used works allows readers gaining additional sources of assigned problem discoveries and reaching data for calculations. Many analyses require accurate figures and numbers. You may connect present studies with investigations described in published articles and conducted by famous researchers in past. You show your own contributions and accounts. An abstract format may be updated many times. Each popular thesis abstract includes writer’s scores greatly described at the beginning of written dissertation work.

An accurate summary shows the author’s analytical and writing skills. It contains key objectives, research justifications, detailed methodology, writing techniques, major results and study statements. Never write thesis abstracts before completing a dissertation. Table of content and paper headings may be used as guidelines to write proper thesis abstract. Letting other people read your thesis abstract before submitting is important; it gives a chance to deal with possible mistakes in minutes. Thesis abstract includes various elements. It casts light on difficult methodology and identifies what is your research problem .

Experienced writers prefer writing a dissertation abstract after the entire paper was written and the results were reached. It allows creating a professional paper’s summary. Proper scientific content is important when readers generally read dissertation’s summaries first. This is a short version of the main paper allowing readers gaining the main information and building their own expectations about dissertation outcomes. This special content needs to be flawless and original.

Thesis abstract is an essential part of every dissertation paper. It is a professional summary of a complete dissertation work presented on a few pages at the beginning of the dissertation paper. It gives readers a chance to discover the key points of the dissertation, its research chapters, calculations, source references, methodology and results part. Writing a proper abstract is essential.

Students use various popular techniques and guidelines to perform perfect thesis abstract, including numerous summaries samples available online. Proper structure of short summary is crucial. It should answer all researches’ questions and be written to identify major elements and objectives of a dissertation. Thesis abstract answers main questions of the entire paper. This short summary is a single page of text. Every thesis abstract needs to show the key methods used in a work, problems analyzed and gathered outcomes of conducted complex research work.

Researcher: [Name Surname] Presentation Title: Characterization of Iron Deposition in Recombinant Heteropolymer Ferritins Research Focus: Chemistry School: [School Name] Presentation Type: Poster Presentation Abstract: Characterization of Iron Deposition in Recombinant Heteropolymer Ferritins Deneen Cole, Dr. Fadi Bou-Abdallah, SUNY Potsdam (NY, USA), Dr. Paolo Arosio, University of Brescia (Italy), Dr. Sonia Levi, Vita-Salute San Raffaele University (Italy) Ferritin is a ubiquitous iron storage and detoxification protein found highly conserved in species from bacteria to plants to humans. In mammals, ferritin is composed of two functionally and genetically distinct subunit types, H (heavy, ~21,000 Da) and L (light, ~19,000 Da) subunits which co-assemble in various ratios with tissue specific distribution to form a shell-like protein. The H-subunit is responsible for the fast conversion of Fe(II) to Fe(III) by dioxygen (or H2O2) whereas the L-subunit is thought to contribute to the nucleation of the iron core. In the present work, we investigated the iron oxidation and deposition mechanism in two recombinant heteropolymers ferritin samples of ~20H:4L (termed H/L) and ~22L:2H (termed L/H) ratios. Data indicates that iron oxidation occurs mainly on the H-subunit with a stoichiometry of 2Fe(II):1O2, suggesting formation of H2O2. The H/L sample completely regenerates its ferroxidase activity within a short period of time suggesting rapid movement of Fe(III) from the ferroxidase center to the cavity to form the mineral core, consistent with the role of L-chain in facilitating iron turn-over at the ferroxidase center of the H-subunit. In L/H, Fe(II) oxidation and mineralization appears to occur by two simultaneous pathways at all levels of iron additions: a peroxidation pathway with a 2Fe(II)/1O2 ratio and a mineralization pathway with a 4Fe(II)/1O2 resulting in an average net stoichiometry of ~3Fe(II)/1O2. These results illustrate how recombinant heteropolymer ferritins control iron and oxygen toxicity while providing a safe reservoir for reversible uptake and release of iron for use by the cell.
Researcher: [Name Surname] Presentation Title: An Analysis of Yukon Delta Salmon Management Research Focus: Fisheries management related to Bering Sea fisheries and Yukon River salmon populations. School: [School Name] Student Level: Masters Presentation Type: Oral Presentation Abstract: The broad range of Pacific Alaskan salmon has resulted in the creation of a complex and multiorganizational system of management that includes the state of Alaska, various federal departments, a Congressionally-mandated fishery council, and a number of commercial and nongovernmental fish organizations. In the Bering Sea salmon are caught by the commercial groundfish fleet as by-catch. On the Yukon River salmon are commercially and traditionally harvested for both economic and cultural sustenance by the Yup’ik residents of the Yukon Delta. Declining salmon populations has driven scientific research which considers the effects of Bering Sea salmon by-catch. My research findings indicate that Bering Sea fisheries occur where juvenile salmon mature, directly impacting Yukon River salmon populations. Further, the research reflects that although Yukon salmon populations have plummeted, a recent effort was made to open the northern Bering Sea, which includes the Yukon River coastal shelf, to deep-sea commercial fishing. By researching the relationship of policy to cultural salmon dependence, it becomes evident that Alaskan salmon-tribes are excluded from salmon management and decision-making. Legal research reflects that three basic federal Indian concepts – inherent rights, Indian Country, and tribal right of occupancy – emerge as potential foundations that may allow Alaskan salmon tribes to begin sharing legal responsibility over salmon. Yukon River salmon are an international and anadromous species that require multi organizational management. My research reflects that current management favors the Bering Sea commercial fishing industry, despite data indicating Bering Sea fisheries impact Yukon salmon populations and an overall downward trend in Yukon salmon populations.

The methodology is an important part of your dissertation. It describes a broad philosophical underpinning to your chosen research methods, either quantitative or qualitative, to explain to readers your approach better. Make sure that you’re clear about an academic basis for your choice of research ...

When writing an academic paper on either broad or narrow research paper topics, a good research question can help you start well. It’s all about stating a clear one that your research will answer. It plays an important role because it helps you focus the entire paper and enables you to make a strong...

When you write a thesis, you should pay exceptional attention to the introduction. The reader will start your thesis from the introduction, and he will make up his view and understanding of the problem, your ideas, professionalism and writing skills based on the introduction. Your introduction is an...

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  1. How to Write an Abstract | Steps & Examples - Scribbr

    Tips for writing an abstract. Read other abstracts. The best way to learn the conventions of writing an abstract in your discipline is to read other people’s. You probably already ... Reverse outline. Write clearly and concisely. Check your formatting.

  2. Writing an Abstract for Your Research Paper

    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;

  3. How to Write an Abstract for a Dissertation or Thesis

    How Do You Write a Good PhD Thesis Abstract? Keep It Concise. Every word in the abstract is important so make sure you focus on only the key elements of your... Make a Unique Point Each Sentence. Keep the sentences short and to the point. Each sentence should give the reader new,... Explain Your ...

  4. What is a dissertation abstract - The PhD Knowledge Base

    But how can I write a great one? 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, ...

  5. How to Write a Thesis Abstract | PhD Progress

    To entice prospective PhD examiners – when your university is recruiting academics to examine your thesis, they’ll receive a copy of your abstract. This is why you’re required to provide an abstract when you signal your intention to submit. A potential examiner can then decide whether your topic is relevant and of interest.

  6. How To Write An Abstract For A Dissertation Or Thesis: 5 ...

    Learn how to avoid 5 common mistakes when writing your dissertation or thesis abstract. David Phair (PhD) and Peter Quella (PhD) discuss the most popular issues they see coming up with...

  7. How to Write a Perfect Thesis Abstract – ProThesisWriter.com

    Writing a proper abstract is important. Students use various techniques and guidelines to perform a perfect thesis abstract. Proper structure and of thesis dissertation is crucial. It should answer all the study’s questions and be written to identify a major element of a dissertation or thesis paper.