Michael Hennessy is a researcher at the Annenberg Public Policy Center. His major interests are the integration of structural equation modeling and intervention program/behavioral theory, growth curve analysis of longitudinal data, and using factorial surveys to model decision making and to design effective interventions. He has published over 100 articles in journals as Evaluation Review, Structural Equation Modeling, Psychology Health & Medicine, American Journal of Evaluation, Evaluation and the Health Professions, Journal of Sex Research, and AIDS and Behavior. Dr. Hennessy was previously employed by the Centers for Disease Control (Division of STD Prevention), has held faculty positions at the University of Hawaii and Emory University (both in the Department of Sociology), and has worked in the private sector doing evaluation research (at Abt Associates, Inc., Cambridge, MA and at the Pacific Gas and Electric Company, San Francisco, CA). He received his Ph.D. from Northwestern University and his M.P.H. from the School of Public Health, Emory University.