Harris Cooper is Hugo L. Blomquist professor for psychology and neuroscience at Duke University. In 2007, he received the Contributions to Research Synthesis Methodology Award from the International Campbell Collaboration. In 2008, he received the Distinguished Lifetime Achievement Award from the Society for Research Synthesis Methodology. He has been the editor of Psychological Bulletin and Archives of Scientific Psychology. From 2009 to 2015, he was the Chief Editorial Advisor to the American Psychological Association’s journal publishing program. His substantive interests include application of social and developmental psychology to education policy.

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• INTRODUCTION: LITERATURE REVIEWS, RESEARCH SYNTHESES AND META-ANALYSESSTEP 1: Formulating the ProblemSTEP 2: Searching the LiteratureSTEP 3: Gathering Information From StudiesSTEP 4: Evaluating the Quality of StudiesSTEP 5: Analyzing and Integrating the Outcomes of StudiesSTEP 6: Interpreting the EvidenceSTEP 7: Presenting the ResultsCONCLUSION: Threats to the Validity of Research Synthesis Conclusions