There are a number of tools and checklists available to help assess the quality of studies to be included in a review. Studies included in a systematic review should be assessed for their quality and only good and reliable studies should be included.
These are some books which you might find useful when critically appraising research. Click on the link to access the iDiscover (link opens in new window) record for the book.
iDiscover link to How to Read a Paper (link opens in new window)
iDiscover link to The Pocket Guide to Critical Appraisal (link opens in new window)
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