Professor of Psychology, Carnegie Mellon University

William Dietrich II Professor of Psychology, Carnegie Mellon University

Professor Emeritus of Family Science

Professor Emeritus of Psychology, University of Washington

Distinguished University Professor, School of Aging Studies, University of South Florida

Professor of Psychology, Victoria University of Wellington

Professor & Chair, Department of Social & Behavioral Sciences, Temple University

Stony Brook University

Professor Emeritus of Human Development, Washington State University

New Mexico State University