K. WARNER SCHAIE is the Evan Pugh Professor Emeritus of Human Development and Psychology at the Pennsylvania State University and Affiliate Professor of Psychiatry and Behavioral Sciences at the University of Washington. He received his Ph.D. in psychology from the University of Washington, an honorary Dr. phil. from the Friedrich-Schiller University of Jena, Germany, and an honorary Sc.D. degree from West Virginia University. He is also an ABPP Diplomate in Clinical Psychology and served as a director of clinical training and as department head of psychology while at West Virginia University, as director of the Gerontology Research Institute at the Andrus Gerontology Center of the University of Southern California, and as director of the Gerontology Center at the Pennsylvania State University. Hereceived the Kleemeier Award for Distinguished Research Contributions and the Distinguished Career Contribution to Gerontology Award from the Gerontological Society of America, the MENSA lifetime career award, and the Distinguished Scientific Contributions award from the American Psychological Association. He is author or editor of 60 books including the textbook Adult Development and Aging (5th edition, with S. L. Willis) and of all seven editions of the Handbook of the Psychology of Aging. He has directed the Seattle Longitudinal Study of cognitive aging since 1956 and is the author of more than 300 journal articles and chapters on the psychology of aging. His current research interest is in the life course of adult intelligence, its antecedents and modifiability, the impact of cognitive behavior in midlife upon the integrity of brain structures in old age, the early detection of risk for dementia, as well as methodological issues in the developmental sciences.