Distinguished University Scholar & Professor | Faculty of Education | University of British …

Medical Statistics, University of Aberdeen

Professor of Psychometrics, University of Barcelona, Barcelona, Spain

Professor of Psychology, University of South Florida

Penn State University

York University

Emeritus Professor of Educational Research and Evaluation, Ohio University

President & CEO, Research Analytics Consulting, LLC

Professor of Educational Statistics and Research Methods, University of Arkansas

Associate Professor of Applied Linguistics, Hakim Sabzevari University