My program of research has been diverse.  My career has emphasized developing measures of health and health-related concepts.  As Director of the Measurement and Methods Core of the UCSF Center for Aging in Diverse Communities, I have focused on measurement issues in studies of diverse populations for application in health disparities research.  In addition, I developed several interventions to improve lifestyle (physical activity and diet) in older adults, focusing on lower-socioeconomic status and minority groups.  The most recent was a translational research project to evaluate a community-based lifestyle program to reduce risk of diabetes in lower-SES and minority adults.