This has been a brief introduction to some basic critical appraisal
techniques. If you wish to learn more there are many excellent
texts available in the libraries. For example
see:
Greenhalgh, T. 2015. How to read a paper: the basics of evidence-based medicine. 5th ed. Chichester: John Wiley & Sons.
If you are interested in critical appraisal because you are working on a systematic review, Cardiff University's Specialist Unit for Review Evidence web site provide details of useful critical appraisal checklists and further guidance on conducting systematic reviews.
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