The Review Protocol

Review Type

Narrative Literature Review: A Complete Guide

Learn how to write a narrative literature review: definition, when to use it, step-by-step process, reporting conventions, and common pitfalls for thesis chapters.

By Angel Reyes · Last updated

What is a narrative review?

A narrative review — sometimes called a traditional, descriptive, or thematic literature review — is an interpretive synthesis of the published literature on a topic. Unlike a systematic review, it does not require a pre-registered protocol, exhaustive search, or formal quality appraisal. The author selects and discusses studies that illustrate the intellectual landscape of a field, drawing out themes, debates, theoretical lineages, and open questions. Narrative reviews have the longest history in academic writing; they are the default format for dissertation Chapter 2 sections, book introductions, editorials, and theoretical essays.

Narrative reviews are authoritative rather than exhaustive. Their credibility rests on the reviewer's judgment, the coherence of the argument, and the transparency of the reasoning — not on a reproducible pipeline. Classic discussions of the form include Baumeister and Leary's "Writing Narrative Literature Reviews" (Review of General Psychology, 1997) and Green, Johnson, and Adams's "Writing narrative literature reviews for peer-reviewed journals" (Journal of Chiropractic Medicine, 2006), both of which remain canonical references. More recent methodological commentary from groups such as the EQUATOR Network and the SANRA (Scale for the Assessment of Narrative Review Articles) authors has sought to raise narrative reviews' reporting quality without imposing the rigidity of PRISMA.

A well-written narrative review does three things: it frames a problem, positions it within the existing scholarship, and motivates the question the author will pursue next. When it succeeds, the reader finishes with a map of the terrain and a clear sense of where the map's edges still lie.

When to use a narrative review

A narrative review is the right choice when:

  1. You are writing a thesis or dissertation Chapter 2. Most graduate programs expect a narrative, thematic review that situates the study within a theoretical tradition. A systematic review would over-scope the chapter.
  2. You are developing a theoretical framework. When the aim is to construct or critique a conceptual model — for example, combining self-determination theory with implementation science — narrative synthesis is the appropriate form.
  3. You need a broad topic overview for a grant proposal or editorial. Funders and journal editors typically want a concise, argumentative summary, not a PRISMA flow diagram.
  4. The evidence base is sparse, heterogeneous, or primarily qualitative. When studies resist direct comparison, an interpretive narrative may be more faithful than a systematic protocol that screens most sources out.
  5. You are orienting yourself to a new field. Many doctoral students begin with a narrative review, then progress to a scoping review once they have mapped the landscape, and occasionally to a systematic review once a focused question emerges.

Contrast this with systematic reviews, which answer narrow, pre-specified questions with reproducible methods, and with scoping reviews, which map an evidence base but still require a documented search protocol. If you need exhaustive coverage or pooled effect estimates, see the meta-analysis guide instead.

Step-by-step process

A narrative review still benefits from a structured process, even without a formal protocol. Map your work to the five phases of the review pipeline:

  1. Define scope and refine your question. Draft a focused topic statement — not a PICO question, but a scholarly problem. Identify the key constructs, theoretical lenses, and the disciplinary boundaries of your review.
  2. Develop a working search. Narrative reviews use a pragmatic search strategy: a handful of well-chosen databases (Google Scholar, PubMed or PsycINFO, plus a disciplinary database) combined with citation chasing from seminal papers. Document what you searched and when, even if you are not aiming for exhaustiveness.
  3. Screen and select. Apply light-touch screening criteria: relevance to your themes, publication in peer-reviewed venues or credible grey literature, and coverage across time and perspectives. You do not need dual independent screening, but you should avoid cherry-picking studies that only support your argument.
  4. Extract and organize. Build a literature matrix to extract key information from each source — author, year, theoretical lens, methods, key findings, and how the study relates to your themes. This is where a well-structured matrix pays off.
  5. Synthesize thematically. Use narrative synthesis — organize by theme, chronology, theoretical school, or debate. Resist the temptation to summarize studies one by one; instead, weave them into an argument. Close with a gap statement that motivates your own research.

Reporting standards

Narrative reviews have no single mandatory standard, but three references are worth knowing. The SANRA tool (Baethge, Goldbeck-Wood, and Mertens, 2019) offers a six-item quality scale. The EQUATOR Network catalogues review reporting guidelines. And disciplinary conventions — APA, AMA, Chicago — govern citation style. At minimum, state your topic, the databases you searched, the approximate date range, the inclusion logic you applied, and the thematic organization you chose. See the reporting standards overview for a broader comparison.

Common pitfalls

  • Cherry-picking supportive studies. The most common criticism of narrative reviews is that authors select sources that confirm their argument and ignore disconfirming evidence. Explicitly seek out dissenting work.
  • Summarizing one study per paragraph. A review is not an annotated bibliography. Organize around ideas, not articles.
  • Conflating the narrative review with a systematic review. Do not claim "systematic" rigor unless you follow PRISMA. Reviewers will notice.
  • Omitting the search description. Even a narrative review should disclose what databases were consulted and over what period. Transparency builds credibility.
  • Ending without a gap statement. The review should conclude by naming what is still unknown and motivating the next step — whether that is your empirical study, a scoping review, or a later systematic review.

Tools & templates

Use the Literature Review Matrix to extract and organize your sources thematically — it is the single most useful artifact for a narrative review. The Search Strategy Documentation Form helps you record databases and dates even when you are not pursuing exhaustive coverage. For style, pair these with discipline-appropriate citation management in Zotero or EndNote. All are available in the templates library.

Next steps

Narrative reviews reward careful organization more than any other review type, because their credibility lives in the argument, not the protocol. Build your matrix early, refine your themes as you read, and return to it each time you add a source. The Subthesis Literature Matrix gives you a ready-made workspace with fields for theoretical framing, methodology, and thematic tagging — exactly the structure a narrative review demands.