University of Pennsylvania

Norma B. Coe, PhD is an Associate Professor of Medical Ethics & Health Policy at the Perelman School of Medicine at the University of Pennsylvania. She received her PhD in Economics from MIT and BA in Economics from the College of William & Mary. Dr. Coe is a health economist whose research focuses on identifying causal effects of policies that directly and indirectly impact health, human behavior, health care access, and health care utilization. She has studied healthcare costs, costs to caregivers, the quality of care delivered in an informal vs. formal care setting, the cost-effectiveness of various interventions, and worked with forecasting models. In her research projects, Dr. Coe uses econometric and health services research techniques to answer pressing questions for policymakers about aging in America.


Erica Dixon, PhD is a Project Manager in the Department of Medical Ethics & Health Policy (MEHP) at the University of Pennsylvania. Dr. Dixon received her PhD in Behavior, Cognition, and Neuroscience from American University and her BA in Psychology from New York University. Erica manages the ACTIVE project, which examines how cognitive training could improve or maintain cognitive processes of daily living.


Andrew Gellert photo

Andrew Gellert is a Postdoctoral Researcher working with Norma Coe and Erica Dixon on the ACTIVE project. He has lived in Philadelphia with his wife Genevieve for about six years, while completing a PhD in Economics from Drexel University. Andrew’s dissertation work has examined cigarette taxation and the Women, Infants, and Children (WIC) program.


University of Washington

Sherry Willis photo

Sherry Willis, PhD, her research focuses on lifespan cognitive development, adult development and aging, cognitive interventions, midlife risks of cognitive impairment, and everyday functioning. Dr. Willis is a PI on ACTIVE, an NIA funded national behavioral intervention clinical trial. Dr. Willis developed one of the cognitive intervention programs employed in the trial. Five years after training, elderly in the intervention arm maintained a higher level of cognitive functioning on the abilities trained and reported less difficulty in performing activities of independent living compared to controls. Dr. Willis has published in Journal of the American Medical Association (JAMA), Psychology and Aging, Behavioral Medicine, Generations, Journal of International Neuropsychology Society, European Journal of Ageing.


Johns Hopkins University

George Rebok photo

George W. Rebok, PhD has a life-course developmental orientation, a background in gerontology and cognitive aging, developmental psychology, prevention science, and public mental health, and postdoctoral training in neuropsychology, neuroscience, epidemiology, and biostatistics. Dr. Rebok is a PI on ACTIVE, an NIA funded national behavioral intervention clinical trial. His major research interests are focused in three interrelated areas: 1) identification of early risk and protective factors on later life cognitive health and daily function; 2) prevention of age-related cognitive decline, memory loss, depression, and disability; 3) study of the short- and long-term outcomes of cognitive intervention trials with children and with normal and impaired older adults.