How to Conduct and Write a Literature Review for Your Dissertation

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Contents

• Glossary of Key Terms
• Key Takeaways
• What Is a Literature Review, and Why Does It Matter?
• How Should You Prepare Before Writing?
• How Do You Organize Your Literature Before Writing?
• How Do You Write the Literature Review?
• Common Mistakes in a Dissertation Literature Review
• What Are the Different Types of Literature Reviews?
• How Long Should a Dissertation Literature Review Be?
• How Do You Avoid Plagiarism in a Literature Review?
• How Do You Polish and Finalize Your Literature Review?
• How Does the Literature Review Connect to the Rest of Your Dissertation?
• Frequently Asked Questions

Glossary of Key Terms

The following terms appear throughout this guide. Familiarizing yourself with them before reading will help you navigate the guidance more effectively.

Term	Definition
Literature Review	A critical, synthesized overview of existing scholarly research relevant to a specific research topic or question.
Synthesis	The process of integrating findings from multiple sources to build a coherent argument, rather than summarizing each source individually.
Research Gap	An area within the existing body of knowledge that has not been adequately studied, which your dissertation aims to address.
Conceptual Framework	A structured set of concepts, theories, or models drawn from the literature that guides the design and analysis of a study.
Theoretical Framework	The existing theory or theories that underpin and inform your research approach and interpretive lens.
Annotated Bibliography	A list of sources accompanied by a brief critical summary of each, often used as a precursor to writing the literature review.
Citation Chaining	A technique for finding sources by tracing the references listed in articles already identified as relevant.
Peer-Reviewed Source	A scholarly article or publication that has been evaluated and approved by independent experts in the relevant field before publication.
Narrative Review	A type of literature review that discusses and synthesizes sources thematically or chronologically, commonly used in undergraduate and master’s dissertations.
Systematic Review	A highly structured review that uses explicit, replicable methods to identify, select, and critically appraise all relevant research on a question.
Thematic Organization	Grouping literature according to key themes, concepts, or issues rather than by author or chronology.
Critical Evaluation	The process of assessing the quality, credibility, relevance, and limitations of each source, rather than simply describing it.
PICO Framework	A tool used in systematic reviews: Population, Intervention, Comparison, Outcome, used to frame a research question.
Grey Literature	Research produced outside of traditional academic publishing channels, such as government reports, policy documents, and conference proceedings.

Key Takeaways

• A literature review is not a summary of individual sources; it is a synthesized, critical narrative that maps the existing knowledge landscape of your topic.
• Its primary functions are to demonstrate your knowledge of the field, reveal the research gap your dissertation addresses, establish a theoretical or conceptual framework, and inform your methodology.
• Effective literature reviews follow a clear process: define the scope, search systematically, evaluate sources critically, organize thematically, and synthesize rather than describe.
• Quality over quantity applies to sources. Every source included should serve a clear purpose in building your argument.
• Structure matters: most dissertation literature reviews follow an introduction, thematic body sections, and a concluding gap statement.
• Common pitfalls include writing a descriptive catalogue of sources, over-relying on direct quotations, failing to engage critically, and neglecting to connect the literature to your own research.
• Regularly verify the accuracy and completeness of your references. A tool such as Paperpal’s Reference Checker can help you catch broken, missing, or incorrectly formatted citations before submission.
• Professional editing support, such as Editage’s Dissertation Editing service, can help ensure your literature review meets the linguistic and structural standards expected by examiners.
• Recency matters: in most disciplines, sources should generally be published within the past five to ten years, with justification provided for any landmark older works cited.
• Your literature review is a living document: revisit and revise it as your research progresses to ensure alignment between the literature, your framework, and your findings.

What Is a Literature Review, and Why Does It Matter?

A literature review is a critical, synthesized overview of existing scholarly research on a topic. It is not a simple list of summaries. It is an integrated account of what is known, what is debated, and what remains unresolved in a field, written to contextualize and justify your own research.

The University of Westminster’s library guidance describes the literature review as an overview of the significant literature on a topic, one that should identify key debates, present and critically evaluate previous research, and highlight gaps in the existing body of knowledge.

At the London School of Economics, the literature review is framed as both a text and a process: a finished written chapter, but also an ongoing intellectual activity that develops your understanding of your field throughout the dissertation journey.

What Functions Does a Literature Review Serve?

A strong literature review fulfills four core functions simultaneously. The table below maps each function to its practical outcome.

Function	Practical Outcome for Your Dissertation
Demonstrates field knowledge	Shows markers and readers that you understand existing theories, methodologies, and findings in your area.
Reveals the research gap	Establishes the specific, unaddressed space your study will occupy, justifying why your research is necessary and original.
Establishes the theoretical/conceptual framework	Identifies the lens or model through which you will interpret your findings, grounding it in existing scholarship.
Informs the methodology	Provides a basis for selecting research methods by showing how similar studies have approached comparable questions.

Is a Literature Review the Same as an Annotated Bibliography?

No. These are two distinct products. An annotated bibliography lists and briefly describes individual sources. A literature review synthesizes those sources into a coherent argument, grouping them by theme, debate, or concept to reveal patterns and gaps across the body of research as a whole.

Annotated Bibliography	Literature Review
Source-by-source structure	Thematic or conceptual structure
Descriptive summaries of each source	Critical synthesis across multiple sources
No argumentative thread required	Must build toward a clear gap statement
Often used as a planning tool	A formal, assessed chapter in a dissertation

How Should You Prepare Before Writing?

Preparation is the single most important determinant of a high-quality literature review. Thorough planning at this stage prevents the most common failures, such as disorganization, irrelevant sources, and a narrative that fails to build toward a coherent argument.

Consult Your Supervisor Early

Before committing to a structure or search strategy, meet with your dissertation supervisor. You should discuss both the style and structure of the literature review with their supervisor before beginning, considering that different disciplines and research approaches call for different forms of review. At the undergraduate and master’s level, a narrative review that sets the scene for your research is the most common format. Doctoral candidates may be expected to conduct a more systematic or structured review, depending on the field.

Define the Scope of Your Review

A clearly defined scope prevents your literature review from becoming either too narrow (missing important context) or too broad (including tangential material). Use the following questions to define your boundaries:

• What is the central research question or problem your dissertation addresses?
• What disciplines, fields, or sub-fields are relevant?
• What time period will you cover? Is there a meaningful reason to restrict to sources from the past decade?
• What types of sources will you include, such as journal articles, books, government reports, or conference papers?
• What geographic or cultural scope is appropriate for your topic?

What Databases and Tools Should You Use to Find Literature?

Use multiple databases to ensure comprehensive coverage. Relying on a single database creates blind spots. The table below lists core databases by discipline alongside recommended search strategies.

Discipline Area	Key Databases	Additional Sources
Social Sciences	Scopus, JSTOR, PsycINFO, Web of Science	Policy reports, government publications, grey literature
Sciences and Medicine	PubMed, MEDLINE, Embase, Cochrane Library	Clinical trial registries, systematic review databases
Humanities	JSTOR, MLA International Bibliography, Historical Abstracts	Institutional repositories, archival collections
Business and Management	Business Source Complete, ABI/INFORM, EconLit	Industry reports, working papers, conference proceedings
Education	ERIC, British Education Index, PsycINFO	Thesis repositories such as ProQuest and EThOS
Law	Westlaw, LexisNexis, HeinOnline	Government legislation, judicial opinions, law reviews

Beyond database searching, use citation chaining: trace the references in articles you have already identified as important. Frequently cited papers are often landmark studies that must be included. Don’t forget to check Google Scholar, ProQuest, and institutional repositories in addition to subject-specific databases.

Once sources are identified, import them into reference management software such as Zotero, Mendeley, or EndNote. This keeps your library organized and makes citation formatting far more efficient when writing. Before you submit your dissertation, running your reference list through Paperpal’s Reference Checker is a practical final step: it identifies broken links, incomplete citations, and formatting inconsistencies that are easy to overlook but that examiners will notice.

How Do You Evaluate the Quality of a Source?

Not all sources are equally credible or relevant. Apply the following CRAAP criteria when evaluating each source you find.

CRAAP Criterion	Questions to Ask
Currency	When was this published? Is it recent enough for your discipline? Has it been superseded by newer research?
Relevance	Does this source directly address your research topic or question? Does it offer something the other sources do not?
Authority	Who are the authors? What are their credentials? Is the publishing journal or press reputable and peer-reviewed?
Accuracy	Is the methodology sound? Are claims supported by evidence? Has the work been cited and validated by others?
Purpose	Why was this written? Is it informing, arguing, or promoting? Are there potential biases that affect its reliability?

Evaluating the quality of studies to be included is a separate step before writing begins, not something to be done informally while drafting.

How Do You Organize Your Literature Before Writing?

Organization is what transforms a stack of articles into a coherent argument. Before drafting a single sentence, you need a system for grouping and relating your sources. This is the synthesis planning stage.

Building a Synthesis Matrix

A synthesis matrix is a spreadsheet or table in which rows represent sources and columns represent key themes, arguments, or concepts. Filling in each cell forces you to extract what each source contributes to each theme, rather than simply describing the source as a whole.

Example

A minimal synthesis matrix might look like this:

Source (Author, Year)	Theme 1: Definition/Concept	Theme 2: Methodology Used	Theme 3: Key Finding or Gap
Smith (2019)	Defines burnout as…	Cross-sectional survey, n=350	Found no gender difference
Patel & Okafor (2021)	Uses Maslach’s MBI model	Longitudinal, 18-month	Gap: no data on remote workers
Chen et al. (2022)	Distinguishes burnout from stress	Meta-analysis, 42 studies	Confirms role of autonomy

Once your matrix is populated, patterns emerge across columns: you can see which themes are well-supported, which are contested, and where the gaps lie. These patterns become the backbone of your literature review structure.

Which Structural Approach Should You Choose?

There are three primary structural approaches to organizing a literature review. The best choice depends on the nature of your topic and the volume of literature available.

Structure	How It Works	Best Suited For
Thematic	Organizes literature by key themes or concepts, grouping studies that address the same issue regardless of when they were published.	Topics with multiple intersecting debates or concepts; most common at master’s level.
Chronological	Presents the development of research over time, showing how knowledge has evolved and where the field stands today.	Topics with a clear historical trajectory; useful when the evolution of ideas is itself significant.
Methodological	Groups studies by the research methods they employ, critiquing the strengths and weaknesses of each approach.	Topics where methodological debate is central to the research gap; common in systematic reviews.

You should assist readers by using headings, incorporating brief summaries throughout the review, and using language that explicitly names the organizational logic being applied. Whichever structure you choose, signal it clearly at the outset.

How Do You Write the Literature Review?

Writing the literature review is where planning becomes prose. The goal is a critically engaged, synthesized narrative that builds logically toward the identification of your research gap. Every paragraph should do more than report what someone said; it should evaluate, compare, and connect.

What Does the Structure of a Literature Review Chapter Look Like?

A dissertation literature review chapter typically follows a three-part structure. Adapt the specific content to your topic, but retain this overall architecture.

• Introduction: State the scope and purpose of the review. Explain how you searched for sources and on what basis you included or excluded them. Preview the themes or structure that follows.
• Thematic body sections: Each section addresses a distinct theme, concept, or debate. Begin each section with a clear topic sentence. Synthesize across sources rather than describing them one by one. End each section by signaling the transition to the next theme or by identifying a specific limitation in the literature addressed in that section.
• Conclusion and gap statement: Summarize the state of knowledge in the field. Identify the specific gap, contradiction, or unanswered question that your dissertation will address. This gap statement is the bridge to your research questions and methodology chapter.

What Does Good Synthesis Actually Look Like?

Synthesis means showing relationships between sources, not merely stacking summaries. The table below contrasts descriptive writing (common in weaker literature reviews) with synthetic writing (expected in strong dissertations).

Descriptive (Weak)	Synthetic (Strong)
“Smith (2019) found that burnout is linked to workload. Jones (2020) also studied burnout and found it is linked to autonomy. Patel (2021) examined burnout and found gender differences.”	“While Smith (2019) and Jones (2020) both identify individual-level antecedents of burnout, they diverge on which factor carries greater weight. Patel (2021) complicates this picture further by introducing gender as a moderating variable, a dimension that neither prior study controlled for.”
“Chen (2018) defines stress as…” followed by “Brown (2020) defines stress as…”	“Definitions of stress in the literature cluster around two poles: those that locate stress in the environment (Chen, 2018; Okafor, 2019) and those that emphasize individual appraisal processes (Brown, 2020; Rao, 2022). This definitional divergence has methodological consequences, as the two camps tend to favor different measurement tools.”

Moving from description to critical commentary is what makes your literature review good or mediocre. A strong literature review does not just report what each author found; it tells a story about the state of knowledge in the field.

How Should You Use Quotations and Paraphrasing?

Quotations should be used sparingly in a literature review. The expectation in most dissertations is that you will demonstrate your own understanding by paraphrasing and synthesizing, rather than reproducing what others have written. Reserve direct quotations for instances where the exact wording carries specific scholarly significance that would be lost in paraphrasing.

• Use paraphrase as the default mode of engaging with sources.
• Cite every idea, finding, or argument that comes from an external source, even when paraphrasing.
• Integrate sources into your argument; do not let sources carry the argument on their own.
• When you do quote directly, contextualize the quotation and explain its significance immediately after.

After drafting, it is worth checking that all citations are accurate, complete, and consistently formatted. Paperpal’s Reference Checker is designed specifically for this purpose: it scans your reference list for errors, missing details, and inconsistencies, saving time in the final stages of dissertation preparation.

How Do You Write the Research Gap?

The research gap is the pivot point of the entire literature review. It is where you shift from describing what others have found to explaining what remains to be discovered, and why your study matters. A strong gap statement is specific, substantiated by the preceding review, and logically connected to your research questions.

Types of research gaps

Common types of research gaps include the following:

• Empirical gaps: A phenomenon has been theorized but not tested empirically, or has only been tested in limited contexts.
• Population gaps: Existing studies have focused on one group (for example, adults in Western countries) and a different population has been underrepresented.
• Methodological gaps: Previous studies share a common methodological weakness, such as small samples, cross-sectional designs, or self-report measures, that limits the conclusions drawn.
• Theoretical gaps: Existing theory does not account for a recently observed phenomenon, or competing theories have not been reconciled.
• Geographic or temporal gaps: Research findings from one context or time period may not apply to another.

Common Mistakes in a Dissertation Literature Review

Many students lose marks in the literature review not from lack of research but from structural and argumentative errors. The following are the most frequently observed weaknesses, together with how to avoid each one.

Common Mistake	Why It Weakens the Review	How to Avoid It
Writing a descriptive catalogue	Reads like a list of summaries rather than a coherent argument. Demonstrates reporting skills, not analytical thinking.	Group sources thematically. Ask what each group of sources tells us collectively, not just what each source says individually.
Ignoring contradictions	Misrepresents the state of knowledge and suggests the student has not read critically.	Actively seek out disagreements in the literature. Discuss them rather than glossing over them.
Using only old sources	Signals unfamiliarity with recent developments in the field.	Aim for sources published within the past five to ten years. Justify the use of older landmark studies explicitly.
Over-relying on secondary sources	Suggests lack of engagement with original research.	Prioritize peer-reviewed primary studies. Use textbooks and review articles as supplements, not foundations.
No clear gap statement	Fails to justify the purpose of the dissertation. The reader cannot understand why the study is needed.	Ensure the conclusion of your literature review explicitly names the gap and links it to your research questions.
Poor citation management	Broken references, inconsistent formatting, and missing details undermine the credibility of the entire dissertation.	Use reference management software from the start. Verify your reference list with Paperpal’s Reference Checker before submission.
Lack of critical voice	Shows awareness of sources but not judgment about their quality, relevance, or limitations.	Evaluate each source: what are its strengths? What are its methodological weaknesses? Why does it or does it not apply to your context?
No connection to your own study	The literature review reads as a stand-alone essay rather than as the foundation for the dissertation.	End each thematic section and the chapter conclusion by linking back to what your study will contribute or investigate.

What Are the Different Types of Literature Reviews?

The type of literature review you are expected to write depends on your level of study, your discipline, and your research aims. Understanding the distinctions helps you pitch your review at the right level of rigor and structure.

Type	Key Characteristics	Most Common At
Narrative Review	Broad and flexible. Synthesizes literature thematically or chronologically. Relies on author judgment for source selection. Tells the story of a field.	Undergraduate and master’s dissertations; introductory chapters of doctoral theses.
Systematic Review	Structured and replicable. Uses explicit inclusion/exclusion criteria. Aims to minimize bias. Often accompanied by a PRISMA flow diagram.	Doctoral research; health sciences; evidence-based policy fields.
Scoping Review	Maps the breadth and nature of evidence on a topic. Does not aim for comprehensive synthesis but surveys the range of approaches.	Early-stage doctoral work; fields where the evidence base is still forming.
Meta-Analysis	Statistically combines quantitative findings from multiple studies to produce aggregate effect size estimates.	Quantitative doctoral research; medicine; psychology.
Integrative Review	Critiques and synthesizes diverse theoretical, empirical, and methodological literature, including both qualitative and quantitative work.	Mixed-methods doctoral research; education; nursing.

For most master’s dissertation students, a narrative review is both appropriate and expected.

How Long Should a Dissertation Literature Review Be?

There is no universal word count for a literature review. Length depends on the overall length of your dissertation, your level of study, and your institution’s guidelines. The following benchmarks provide a general orientation only. Always check your own programme’s requirements.

Dissertation Level	Typical Dissertation Length	Approximate Literature Review Length
Undergraduate	8,000 to 12,000 words	1,500 to 3,000 words
Master’s (taught)	12,000 to 20,000 words	3,000 to 5,000 words
Master’s (research)	20,000 to 40,000 words	5,000 to 10,000 words
Doctoral (PhD)	70,000 to 100,000 words	10,000 to 20,000 words (sometimes a standalone chapter)

Quality, coherence, and critical engagement matter far more than meeting a specific word count.

How Do You Avoid Plagiarism in a Literature Review?

Plagiarism in a literature review can be unintentional, arising from poor note-taking practices, excessive paraphrasing that stays too close to the source, or failure to attribute ideas correctly. The following practices minimize the risk.

• Take notes in your own words from the beginning. When reading a source, close it before writing your notes.
• Always record the full bibliographic details of every source at the point of first encounter.
• Distinguish clearly in your notes between direct quotations, paraphrases, and your own commentary.
• Use a citation for every claim, idea, or finding drawn from an external source, regardless of whether you quote directly or paraphrase.
• Run a plagiarism check for this section. You can use Paperpal’s plagiarism checker for this (as Turnitin accounts are generally held by your university/school and not freely available for students).
• Treat your reference list as a high-stakes document. Errors, omissions, and inconsistencies damage your credibility and may constitute academic misconduct if sources are uncredited.
• Check your reference list against your in-text citations before submission. Tools such as Paperpal’s Reference Checker can automate part of this process, flagging discrepancies between in-text citations and your reference list.

How Do You Polish and Finalize Your Literature Review?

A first draft of a literature review is rarely submission-ready. The revision stage is where the writing becomes publication-quality, the argument is sharpened, and errors are eliminated. Allow time for multiple passes before submission.

Self-Review Checklist

Use the following checklist to evaluate your draft before submitting it to your supervisor or for examination.

• Does the introduction clearly state the scope of the review and how sources were selected?
• Is the overall structure thematic, chronological, or methodological, and is it consistently applied?
• Does every paragraph contribute to the development of an argument, or do some simply describe?
• Are disagreements and contradictions in the literature addressed directly?
• Is critical evaluation present throughout, not just in a few isolated sentences?
• Does the conclusion identify a clear and specific research gap?
• Is every in-text citation matched by a full entry in the reference list, and vice versa?
• Is the citation format consistent throughout and compliant with your institution’s required style?
• Is the writing clear, precise, and free from excessive jargon or unnecessary hedging?

Professional Editing and Language Support

Even well-organized and intellectually strong literature reviews benefit from professional editorial review, particularly for students writing in English as a second language or those returning to academic writing after a gap. A professional editor checks not only for grammar and spelling but also for clarity of argument, consistency of register, structural logic, and adherence to academic conventions.

Editage’s Dissertation Editing service specializes in supporting doctoral and master’s candidates through exactly this kind of comprehensive review. Their editors work with the full dissertation, including the literature review chapter, to ensure that the writing meets the standards expected by examiners at leading institutions worldwide.

How Does the Literature Review Connect to the Rest of Your Dissertation?

The literature review does not stand alone. It is the foundation on which the rest of your dissertation is built. Understanding these connections helps you write a more coherent and integrated dissertation.

Chapter	How the Literature Review Connects to It
Introduction	The literature review elaborates on the background and context introduced briefly in the introduction. The research problem identified in the introduction should be fully substantiated in the literature review.
Methodology	The methodological choices you make should be grounded in the literature review. Citing how comparable studies have approached similar questions justifies your own design choices.
Conceptual/Theoretical Framework	The framework emerges directly from the literature review. The theories and models you use to interpret your findings must be introduced and discussed in the review.
Findings and Discussion	In the discussion chapter, you will return to the literature reviewed earlier, comparing your findings with what previous research found and explaining similarities or discrepancies.
Conclusion	Your contribution to knowledge, identified in the conclusion, must make sense in light of the gap you identified in the literature review.

The literature review lays the foundation for the conceptual framework, which in turn informs the methodology and the interpretation of findings. Treating the literature review as an isolated writing task, rather than as the intellectual spine of the dissertation, is one of the most costly structural errors a doctoral or master’s candidate can make.

After completing your full dissertation draft, a professional service such as Editage’s Dissertation Editing service can review the entire manuscript for consistency between chapters, ensuring that the literature review aligns coherently with the methodology, framework, findings, and conclusion.

Frequently Asked Questions

How many sources do I need to include in my literature review?

There is no fixed number. The right quantity depends on your level of study, your discipline, and the breadth of your topic. A master’s dissertation literature review might draw on 30 to 60 sources, while a doctoral literature review may reference 100 or more. The principle to follow is saturation: keep searching until you stop finding new relevant material. Quality and relevance matter far more than volume. Including 20 highly relevant, critically engaged sources is more valuable than cataloguing 80 sources superficially.

Do I Have to Read All 1,000+ Papers My Literature Search Returned?

No, a large initial result set is normal and expected. The goal is to systematically narrow it down to a manageable, relevant core.

Work through these stages in order:

• Title screening: Eliminate anything clearly off-topic just from the title. This alone typically cuts results by 60–70%.
• Abstract screening: Read abstracts of what remains. Exclude papers that do not directly address your research question, fall outside your scope, or fail basic quality criteria.
• Full-text review: Only papers that pass abstract screening get read in full. For most master’s dissertations, this final set is typically 30–80 papers; for doctoral work, somewhat more.

I’ve Narrowed Down but Still Have 500+ Papers. What Am I Doing Wrong?

The most likely cause is that your research question is too broad, or your key variables are not defined specifically enough. A search built around a term like “exercise” will return vastly more than one built around “low-volume strength training in sedentary adults.” The literature does not need to match your general topic; it needs to match your precise research question.

Try these fixes:

• Tighten your variables. Replace broad umbrella terms with the specific construct you are actually studying. “Stress” becomes “occupational stress” “Technology” becomes “mobile learning apps”.
• Revisit your inclusion criteria. Define population, context, methodology, and time period explicitly, and exclude anything that does not meet all four.
• Check your Boolean logic. Overly loose OR operators cast too wide a net; AND narrows results meaningfully.

A 500-paper shortlist almost always signals a question that still needs narrowing, not a reading list to power through.

Can I use older sources, or does everything need to be recent?

Recency matters, but it is not absolute. As a general rule, aim for sources published within the past five to ten years in most disciplines. However, landmark or foundational studies may predate that window and must still be included if they established the theoretical or empirical basis of your field. When you include an older source, acknowledge its age and explain why it remains relevant. In rapidly evolving fields such as technology, business, or public health, prioritize very recent work, ideally from the past three to five years.

My advisor calls my literature review a list of summaries rather than an argument. How do I fix that?

This is the most commonly reported problem among dissertation students, and it stems from writing source by source rather than theme by theme. The fix is structural: step back from the draft and identify the three to five major themes or debates across all your sources. Then rewrite each section around those themes, grouping sources together and discussing what they collectively suggest, where they agree, and where they diverge. Ask yourself, at the end of every paragraph, what is the point I am making here, as opposed to what does this source say? If the answer is the latter, you are describing; if the former, you are synthesizing.

Do I need to read entire books, or is it acceptable to read specific chapters?

For most dissertation literature reviews, reading relevant chapters of books is entirely acceptable and often expected. You do not need to read an entire monograph if only two chapters are pertinent to your topic. However, be honest in your citations: cite the specific chapter and page range, not the whole book, when your reference is to a particular section. Avoid citing sources you have not actually read, including secondary citations where you reference a source that was discussed in another paper without accessing the original.

Is it acceptable to cite other dissertations and theses in my literature review?

Yes, dissertations and theses can be cited, and they carry value as scholarly sources. They may reveal emerging research trends, offer more substantial coverage of niche topics than journal articles, and contain thorough literature reviews with extensive bibliographies. However, peer-reviewed journal articles should form the core of your literature review. Dissertations are typically not peer-reviewed in the same way, so treat them as supporting, not primary, evidence. Always check your institution’s guidelines, as some programmes restrict or discourage their use.

What do I do if there is very little published research on my specific topic?

A narrow evidence base is itself a finding that can justify your dissertation. In this case, widen your search strategically: look at adjacent topics, related fields, or analogous contexts where similar phenomena have been studied. Clearly acknowledge the scarcity of direct literature in your introduction to the review and explain how you have drawn on neighboring areas. Grey literature, including policy reports, government documents, industry publications, and conference papers, can also fill gaps when peer-reviewed research is limited. Frame the scarcity as part of the research gap that your study addresses.

Can I update my literature review after collecting my data?

Yes, and in many cases you should. The literature review is a living document throughout the dissertation process. If significant new publications emerge during your research period, or if your findings point back to areas of the literature you did not initially explore, revising the review is appropriate and intellectually honest. Some examiners specifically check whether the most recent literature in a field is represented. Ensure that any late additions integrate coherently with the overall argument rather than appearing as additions bolted on at the end.

How do I know when my literature review is genuinely ready to submit?

A literature review is ready when it is possible to read it and clearly understand what the field knows, what it debates, and what it has not yet resolved, without consulting any of the cited sources. If a reader unfamiliar with your topic would finish the chapter and understand precisely why your study is necessary and original, the review has done its job. In addition to content readiness, verify that all references are accurate and complete (Paperpal’s Reference Checker is useful here), that the language is clear and consistent, and that the writing meets the register expected in your institution. For a final quality check on language, structure, and academic conventions, professional support from a service such as Editage can help you submit with confidence.

Can I Use an AI Tool Like Elicit to Generate My Dissertation Literature Review?

You can use Elicit, Consensus, R Discovery, or other such tools as a research aid, but you cannot use any AI tool to generate the literature review itself and submit that output as your own work. No AI tool can replace the critical reading and evaluation of sources, expected by your dissertation committee. Some institutions permit AI tools like R Discovery for research discovery and organization if declared. Others prohibit any AI involvement in the literature review without explicit supervisor approval. Check your program handbook, ask your supervisor directly, and get the answer in writing if you are uncertain.