Terri Piggott at Loyola University Chicago and Joshua Polanin at American Institutes for Research have published a Methodological guidance paper: High-quality meta-analysis in a systematic review, now appearing on Review of Educational Research’s Online First website.
A meta-analysis synthesises the quantitative findings of many studies on a given topic. The guidance paper outlines the characteristics that make a meta-analysis in a systematic review high quality, discussing unbiased screening and coding procedures, establishing a protocol for carrying out a review, and then discussing in depth the best practices for computing effect sizes and reporting the data.
The authors conclude that “the role of researchers using systematic review and meta-analysis is to produce both high-quality analyses and to interpret those results in ways accessible to a wide audience. A high-quality systematic review and meta-analysis is difficult and time-consuming to produce; it is worth the effort to ensure that the results inform future research and policymaking through clear discussion of the results. Researchers should consider preparing different summaries of their review tailored to their audience of researchers, policymakers, and practitioners.”
Source: Methodological guidance paper: High-quality meta-analysis in a systematic review (September 2019), Review of Educational Research