I'm conducting a systematic review. Two reviewers have screened abstracts and full texts for inclusion. We now have n=34 studies. My question is, do both reviewers need to do quality appraisal for all included studies? Or, can I (1st reviewer) do quality appraisals for all studies, and send the 2nd reviewer a random sample of 4-5 studies to do the quality appraisal for, cross checking with my scores?
(NB, this is how I am doing data extraction - I extract 100% of studies, 2nd reviewer extracts data for 4-5 studies as a consistency check).
I can't seem to find a definitive answer on this, although I note that most systematic reviews have 2 reviewers independently conduct the quality assessment on all articles. I would like to avoid that if possible given time constraints.
Many thanks in advance for any insights offered.
Nicola
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