To learn more about a specific Study Director, including research foci, study participation, and biographical data, please click on the desired Study Director's name. The Study Directors presented here were selected based upon their partcipation in the specific research projects represented within this presentation. For more information about the entire research staff of the Prevention Research Center, please visit our website: www.prev.org. Gina Agostinelli, Ph.D. Research Scientist Genevieve M. Ames, Ph.D. Associate Director and Senior Research Scientist Meng-Jinn Chen, Ph.D. Associate Research Scientist Carol Cunradi, M.P.H., Ph.D. Associate Research Scientist Joel W. Grube, Ph.D. Associate Director and Senior Research Scientist   Paul J. Gruenewald, Ph.D Associate Director and Senior Research Scientist Harold. D. Holder Ph.D. Director and Senior Research Scientist Sydney Jay, Ph.D. Associate Research Scientist Robert I. Lipton, Ph.D. Associate Research Scientist Roland S. Moore, Ph.D. Research Anthropologist David Ragland, Ph.D. Senior Research Scientist Marcia Russell, Ph.D. Senior Research Scientist Robert F. Saltz, Ph.D. Associate Director and Senior Research Scientist Andrew J. Treno, Ph.D. Research Scientist Elizabeth Waiters, Ph.D. Research Associate