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Examining Overlap of Included Studies in Meta-Reviews: Guidance for Using the Corrected Covered Area Index
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Hennessy, Emily A.; Johnson, Blair T. – Research Synthesis Methods, 2020
Overlap in meta-reviews results from the use of multiple identical primary studies in similar reviews. It is an important area for research synthesists because overlap indicates the degree to which reviews address the same or different literatures of primary research. Current guidelines to address overlap suggest that assessing and documenting the…
Descriptors: Meta Analysis, Research Methodology, Best Practices, Research Problems
Current Practices in Meta-Regression in Psychology, Education, and Medicine
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Tipton, Elizabeth; Pustejovsky, James E.; Ahmadi, Hedyeh – Research Synthesis Methods, 2019
Having surveyed the history and methods of meta-regression in a previous paper, in this paper, we review which and how meta-regression methods are applied in recent research syntheses. To do so, we reviewed studies published in 2016 across four leading research synthesis journals: "Psychological Bulletin," the "Journal of Applied…
Descriptors: Medical Research, Psychological Studies, Regression (Statistics), Journal Articles