Clark-Shirley is a social gerontologist with nearly 20 years of experience working in aging-related nonprofit, consulting and academic environments. Before joining ASA, she was AARP’s Senior Evaluation Advisor, responsible for strategic planning, building internal evaluation research capacity and applying impact measurement expertise at the departmental and enterprise levels. Prior to that, she led the Aging and Disability research practice at IMPAQ International, a think-tank and policy research firm. Clark-Shirley is a fellow of the Gerontological Society of America, teaches courses on policy and aging and regularly mentors students interested in non-academic careers in aging. She received her doctorate in Gerontology from the University of Maryland, Baltimore County.