| FEATURE |
NARRATIVE REVIEW |
SYSTEMATIC REVIEW |
SCOPING REVIEW |
| Question |
Can cover a wide range of subjects; may include research |
Seeks to systematically search for, appraise and synthesize research evidence, adheres to guidelines on conducting a review |
Assesses size and scope of available and ongoing research |
| Sources and search |
Not usually specified, potentially biased |
Exhaustive and comprehensive sources, explicit search strategy |
Comprehensiveness determined by time/scope constraints, explicit search strategy. |
| Selection |
May or may not be comprehensive. One or more reviewers. |
Inclusion/exclusion criteria-based selection, consistently applied. Two or more independent reviewers. |
Inclusion/exclusion criteria-based selection, consistently applied. Two or more independent reviewers. |
| Appraisal |
Critical appraisal optional |
Rigorous critical appraisal, quality may determine inclusion or exclusion |
Critical appraisal optional |
| Synthesis |
Often a narrative summary |
Quantitative summary, typically narrative with tabular data presentation |
Typically tabular with some narrative synthesis |
| Analysis |
May be chronological, conceptual, thematic, etc. |
What is known, unknown or uncertain; recommendations for practice and/or future research. |
Identify quantity and quality of literature, describe gaps in research |
Based on Grant, M. J., & Booth, A. (2009). A typology of reviews: an analysis of 14 review types and associated methodologies. Health Information and Libraries Journal, 26(2), 91-108.