The Seattle Longitudinal Study

Gizem Hueluer is Professor of Developmental Psychology at the University of Bamberg. She previously held faculty appointments at the University of Bonn, the University of South Florida, and the University of Zurich. She received her Ph.D. in Psychology from the Humboldt University in Berlin. She has extensively published with data from the Seattle Longitudinal Study. Her research interests include cognition, well-being, and social relationships in adulthood, with a focus on old age, and macro- and micro-longitudinal research methods. She has authored numerous articles on the development of cognition, well-being and social relationships across the lifespan.

Denis Gerstorf is Professor of Developmental Psychology at Humboldt University Berlin. His first faculty position was Assistant Professor of Human Development and Family Studies at the Pennsylvania State University. He currently also holds an appointment as Research Fellow at the German Socio-Economic Panel and is the speaker of the interdisciplinary, multi-institutional Berlin Aging Study-II consortium. Gerstorf received his Ph.D. in Psychology from the Free University in Berlin. As a lifespan developmental scholar, he is particularly interested in better understanding how our everyday lives and the long-term developmental trajectories we are on are often closely intertwined with one another and co-regulated by the contexts in which we live. Since their conjoint time at Penn State in the late 2000s, Drs. Gerstorf, Schaie, and Willis have worked collaboratively on numerous analyses of data from the Seattle Longitudinal Study.

Sherry L. Willis is Professor Emeritus of Psychiatry and Behavioral Sciences at the University of Washington. She previously held an appointment as Professor of Human Development at the Pennsylvania State University. She received her Ph.D. in Educational Psychology from the University of Texas at Austin. She was a co-director of the Seattle Longitudinal Study with K. Warner Schaie. She is the author of numerous articles and chapters on the psychology of aging and co-authored and co-edited multiple books, including the textbook, Adult Development and Aging (with K.W. Schaie), Middle Adulthood (with M. Martin), Life in the Middle (with J. Reid), and The Baby Boomers (with S. Whitbourne).

K. Warner Schaie was Professor Emeritus of Psychiatry and Behavioral Sciences at the University of Washington. He previously held the Evan Pugh professorship of Human Development and Psychology at Pennsylvania State University. He founded and was the director of the Seattle Longitudinal Study. He received his Ph.D. in psychology from the University of Washington, an honorary D. Phil from the Friedrich Schiller University of Jena and University of Zurich, and an honorary Sci D. from West Virginia University. He has authored or edited more than 250 articles and chapters on the psychology of aging, and 42 books, including the textbook, Adult Development and Aging (with S.L. Willis), and the Handbook of Psychology of Aging (with J.E. Birren).