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Direct linkPigott, Terri D.; Polanin, Joshua R. – Review of Educational Research, 2020
This methodological guidance article discusses the elements of a high-quality meta-analysis that is conducted within the context of a systematic review. Meta-analysis, a set of statistical techniques for synthesizing the results of multiple studies, is used when the guiding research question focuses on a quantitative summary of study results. In…
Descriptors: Meta Analysis, Literature Reviews, Best Practices, Effect Size
Polanin, Joshua R.; Maynard, Brandy R.; Dell, Nathaniel A. – Review of Educational Research, 2017
Overviews, or syntheses of research syntheses, have become a popular approach to synthesizing the rapidly expanding body of research and systematic reviews. Despite their popularity, few guidelines exist and the state of the field in education is unclear. The purpose of this study is to describe the prevalence and current state of overviews of…
Descriptors: Educational Research, Literature Reviews, Meta Analysis, Synthesis
Polanin, Joshua R.; Tanner-Smith, Emily E.; Hennessy, Emily A. – Review of Educational Research, 2016
Practitioners and policymakers rely on meta-analyses to inform decision making around the allocation of resources to individuals and organizations. It is therefore paramount to consider the validity of these results. A well-documented threat to the validity of research synthesis results is the presence of publication bias, a phenomenon where…
Descriptors: Publications, Periodicals, Bias, Effect Size
Polanin, Joshua R.; Tanner-Smith, Emily E.; Hennessy, Emily A. – Grantee Submission, 2016
Practitioners and policymakers rely on meta-analyses to inform decision-making around the allocation of resources to individuals and organizations. It is therefore paramount to consider the validity of these results. A well-documented threat to the validity of research synthesis results is the presence of publication bias, a phenomenon where…
Descriptors: Publications, Periodicals, Bias, Effect Size
Polanin, Joshua R.; Wilson, Sandra Jo – Society for Research on Educational Effectiveness, 2014
The purpose of this project is to demonstrate the practical methods developed to utilize a dataset consisting of both multivariate and multilevel effect size data. The context for this project is a large-scale meta-analytic review of the predictors of academic achievement. This project is guided by three primary research questions: (1) How do we…
Descriptors: Meta Analysis, Correlation, Case Studies, Parent Participation
Pigott, Therese D.; Valentine, Jeffrey C.; Polanin, Joshua R.; Williams, Ryan T.; Canada, Dericka D. – Educational Researcher, 2013
Outcome-reporting bias occurs when primary studies do not include information about all outcomes measured in a study. When studies omit findings on important measures, efforts to synthesize the research using systematic review techniques will be biased and interpretations of individual studies will be incomplete. Outcome-reporting bias has been…
Descriptors: Educational Research, Research Reports, Bias, Outcome Measures
