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Systematic Reviews & Other Syntheses


After identifying relevant studies for a synthesis, reviewers may critically appraise the validity of these studies in order to determine the risk of bias and how to use this information in any data synthesis.

Grant and Booth (2009) provide a typology of review types that specifically indicates whether or not critical appraisal is generally a component of 14 different reviews types:
Table 1: Main review types characterized by methods used

For more information about critical appraisal:


Grant, M. J., & Booth, A. (2009). A typology of reviews: an analysis of 14 review types and associated methodologies. Health Information & Libraries Journal, 26(2), 91-108.