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Course & Subject Guides

A Guide to Systematic Reviews and Evidence Synthesis Service @ ULS

This guide will define types of evidence synthesis reviews and how the library can help.

Systematic Reviews Defined

A systematic review is defined as “a review of the evidence on a clearly formulated question that uses systematic and explicit methods to identify, select and critically appraise relevant primary research, and to extract and analyze data from the studies that are included in the review.”  The methods used must be reproducible and transparent.

Source: Undertaking Systematic Reviews of Research on Effectiveness. CRD’s Guidance for those Carrying Out or Commissioning Reviews. CRD Report Number 4 (2nd Edition). NHS Centre for Reviews and Dissemination, University of York. March 2001.  

Finding Existing Systematic Reviews

Systematic reviews and review protocols are registered with a variety of organizations.  

For Medical Reviews 


For Social Social Science Reviews


For Environmental Science Reviews


Other Sources