Leo S. Morales, M.D., Ph.D., is Associate Professor with tenure in the Department of Health Services and the Department of Medicine/Division of General Internal Medicine and Health Services Research at UCLA. He is also a faculty member of the UCLA Chicano Studies Research Center and a Senior Natural Scientist at RAND, Santa Monica, California. Dr. Morales received his M.D. and M.P.H. in Health Services from the University of Washington and his Ph.D. in Policy Studies from the RAND Graduate School. Dr. Morales���s research interests include Latino and immigrant health, disparities in healthcare and cross-cultural survey research methods including the application of advanced psychometrics. He is a past recipient of a Robert Wood Johnson Foundation Harold Amos Award and a current recipient of a Robert Wood Johnson Foundation Health Policy Investigator Award and a Russell Sage Foundation Award to study the effects of social assimilation on the health of Mexican immigrants. He is co-Director of the UCLA Resource Center for Minority Aging Research and directs the research methods cores for two federally-funded centers on minority health and health disparities. Dr. Morales is on the editorial board of Health Services Research. In addition to his research and academic activities, Dr. Morales is a practicing general internist at the UCLA Medical Center.