| name | literature-synthesis |
| description | Use when conducting a literature synthesis — systematic review, narrative review, scoping review, or meta-synthesis of qualitative studies. |
Literature Synthesis for Qualitative Researchers
Synthesis means more than summarizing articles: you compare, contrast, integrate, and evaluate patterns across a body of work to produce new insight—whether that is a gap map, a theory critique, or a higher-order interpretive synthesis.
Types of reviews
- Narrative review: Expert-led, flexible scope; strong for framing fields; risk of selection bias if unstructured.
- Systematic review: Pre-specified question, explicit search, screening, appraisal, synthesis—minimizes ad hoc cherry-picking.
- Scoping review: Maps breadth of concepts, sources, and gaps when the field is diffuse.
- Meta-synthesis / qualitative evidence synthesis: Integrates findings across qualitative primary studies (e.g., meta-ethnography, thematic synthesis, meta-aggregative approaches in some health traditions).
Search strategy development
Translate your question into PICOS-like elements adapted for qualitative work (population, phenomenon, context). Use controlled vocabulary + free-text; document databases, date limits, language limits, and grey literature sources. Save reproducible search strings.
PRISMA for systematic reviews
PRISMA flow diagrams and checklists target systematic reviews broadly. For qualitative systematic reviews, use extensions/guidance where available (e.g., ENTREQ reporting guidance for qualitative evidence syntheses—verify current preferred reporting standards for your discipline).
Qualitative meta-synthesis approaches
Meta-ethnography (Noblit & Hare):
- Reciprocal translation, refutational synthesis, line-of-argument synthesis.
- Aims to produce higher-order interpretations, not just pooled themes.
Sandelowski & Barroso’s meta-summary (quantitative-leaning facet):
- Extract findings statements and sometimes frequency-qualify them—useful when discipline demands structured outputs; interpretive depth varies.
Choose a method that matches your epistemology (interpretive vs aggregative).
Synthesis matrices
Build a matrix: rows as studies; columns as constructs, contexts, methods, findings, limitations. Color-code agreements, tensions, silences. Matrices reveal contradictions worth theorizing.
Writing the synthesis
Structure by themes or analytic constructs, not by “Article A, Article B.” For each theme:
- Define it.
- Show cross-study evidence.
- Note methodological strengths/weaknesses influencing confidence.
- State what remains unknown.
Gap identification
Distinguish empirical gaps (no studies in context X) from theoretical gaps (unexplained mechanisms) from method gaps (weak designs dominating a topic).
Grounded theory caution
Classic GT delays substantive-area literature until later analytic stages. A standalone literature synthesis skill is for literature-first projects (reviews, proposals) or post-emergence integration—do not use it to smuggle forcing into early GT coding.
Checklist
References (starting points)
- Noblit, G. W., & Hare, R. D. Meta-ethnography: Synthesizing qualitative studies.
- Gough, D., Oliver, S., & Thomas, J. An introduction to systematic reviews (2nd ed.).
- Sandelowski, M., & Barroso, J. Handbook for synthesizing qualitative research.