Monan Professor in Education, Boston College

Methodologist/Statistician, Associate Professor at FHML, Maastricht University, SHE

DIPF | Leibniz-Institut für Bildungsforschung und Bildungsinformation

University of Minnesota

Educational Testing Service

Professor Emeritus, University of Georgia

Charles William Eliot Professor of Education, Harvard University

Georgia Baptist College of Nursing, Mercer University

Professor, University of Antwerp, Belgium

Professor of Education, University of Colorado