Steps
Source: Foster, Margaret J., and Sarah T. Jewell. Assembling the Pieces of a Systematic Review: A Guide for Librarians. Rowman & Littlefield Publishers, 2017.
Type of Review |
Description |
Search |
Appraisal |
Synthesis |
Analysis |
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Literature/Narrative Review |
Generic term: published materials that provide examination of recent or current literature. Can cover wide range of subjects at various levels of completeness and comprehensiveness. May include research findings. |
May or may not include comprehensive searching. |
May or may not include quality assessment. |
Typically narrative. |
Analysis may be chronological, conceptual, thematic, etc. |
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Rapid Review |
Assessment of what is already known about a policy or practice issue, by using systematic review methods to search and critically appraise existing research. |
Completeness of searching determined by time constraints. |
Time-limited formal quality assessment. |
Typically narrative and tabular. |
Quantities of literature and overall quality/direction of effect of literature. |
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Scoping Review |
Preliminary assessment of potential size and scope of available research literature. Aims to identify nature and extent of research evidence (usually including ongoing research). |
Completeness of searching determined by time/scope constraints. May include research in progress. |
No formal quality assessment. |
Typically tabular with some narrative commentary. |
Characterizes quantity and quality of literature, perhaps by study design and other key features. Attempts to specify a viable review. |
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Systematic Review |
Seeks to systematically search for, appraise and synthesis research evidence, often adhering to guidelines on the conduct of a review. |
Aims for exhaustive, comprehensive searching. |
Quality assessment may determine inclusion/exclusion. |
Typically narrative with tabular accompaniment. |
What is known; recommendations for practice. What remains unknown; uncertainty around findings, recommendations for future research. |
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Meta-Analysis |
Technique that statistically combines the results of quantitative studies to provide a more precise effect of the results. |
Aims for exhaustive searching. May use funnel plot to assess completeness. |
Quality assessment may determine inclusion/exclusion and/or sensitivity analyses. |
Graphical and tabular with narrative commentary. |
Numerical analysis of measures of effect assuming absence of heterogeneity. |