Author Fredric M. Wolf explains how to use combined statistical tests and measures of effect size to synthesize the results of independent studies of a common research question.
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Dr. Wolf has over 20 years educational psychology/evaluation and measurement, medical education, and health services research. He is the Chair of the Department of Medical Education and Biomedical and Health Informatics, member NIH study sections, member international Cochrane Collaboration, former Visiting Scholar at UK Cochrane Centre and Green College, University of Oxford.