University Distinguished Professor Diehl addresses how healthy adult development and aging can be promoted by changing people’s negative views of aging, and educating them about healthy lifestyle changes.
In addition, Diehl studies how certain self-regulatory behaviors like coping strategies and emotion regulation across the adult lifespan develop and change, and how adults develop an awareness of their own age-related changes.
Diehl is a Fellow of both the Gerontological Society of America (Behavioral and Social Sciences Section) and the American Psychological Association (Division 20: Adult Development and Aging).
Diehl is the recipient of several prestigious awards for his scholarship, and has served on numerous study sections and review panels of the National Institute on Aging, National Institutes of Health. He also serves on the editorial board of premier journals in the area of the psychology of aging.
Diehl received his B.S. and M.S. in psychology from the Rheinische Friedrich-Wilhelms University in Germany in 1980 and 1984, respectively. He earned his Ph.D. in human development and family studies from Pennsylvania State University in 1991.