There are many different types of reviews and evidence syntheses--some take longer or shorter than others, depending on many factors. For this reason, it's important to pick the review that fits the timeline for you or your team! The table below is a side-by-side comparison of Systematic, Scoping, and Systematized Reviews.
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Systematic Review
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Scoping Review
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Systematized Review
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Description
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Seeks to systematically search for, appraise and synthesize research evidence, often adhering to guidelines on the conduct of a review
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Preliminary assessment of potential size and scope of available research literature. Aims to identify nature and extent of research evidence (usually including ongoing research)
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Attempt to include elements of systematic review process while stopping short of systematic review. Typically conducted as postgraduate student assignment
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General Logistical Information
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Typical time to completion: 1-2 years
Team-based project, team should include subject experts, biostatistician, information expert/librarian
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Typical time to completion:
1-2 years
Team-based project, team should include subject experts and an information expert/librarian
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Typical time to completion:
6-8 months
Solo or team-based project. Consultations with an information expert/librarian recommended.
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Adapted from Grant MJ, Booth A. A typology of reviews: an analysis of 14 review types and associated methodologies. Health Info Libr J. 2009;26(2):91-108. doi:10.1111/j.1471-1842.2009.00848.x
