SIG-Educational Statisticians

Guili Zhang, East Carolina University

A Hierarchical Framework for Effect Sizes - Ariel M. Aloe, University of Iowa; Shannon Shisler, University at Buffalo - SUNY

Accuracy and Precision of Generalized Omega-Squared: An Empirical Investigation of Research Design and Nonnormality - Anh P Kellermann, University of South Florida; Patricia Rodriguez de Gil, University of South Florida; Thanh Vinh Pham, University of South Florida; Jeffrey D. Kromrey, University of South Florida; Jeanine Romano, American Board of Pathology; Yi-Hsin Chen, University of South Florida

A Study of a New Effect Size for Variance Heterogeneity in Meta-Analysis - Michael R. Harwell, University of Minnesota

Sample Size Requirements for the Three-Level Multivariate Multilevel Model - Wanchen Chang, Boise State University; Susan Natasha Beretvas, The University of Texas - Austin; Keenan A. Pituch, The University of Texas - Austin

Resolving the Issue of How Reliability Is Related to Statistical Power: Adhering to Mathematical Definitions - Donald W. Zimmerman, Carleton University; Bruno D. Zumbo, The University of British Columbia

Michael P. Cohen, American Institutes for Research