Research Professor and Distinguished Research Scientist at the University of Michigan's Institute for Social Research and principal investigator of the Monitoring the Future study since its inception in 1975. A social psychologist by training, he has served as advisor to the White House, Congress, and many other national and international bodies and has conducted research on a wide range of issues, including the use of alcohol, tobacco, and various illicit drugs; institutional trust; policy evaluation; the functioning of American high schools; behaviors influencing the spread of HIV; and most recently, childhood obesity. His research interests also include international comparative studies and the application of survey research to social problems generally.

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Research Professor and Distinguished Research Scientist at the University of Michigan's Institute for Social Research and a principal investigator on the Monitoring the Future study since its inception in 1975. In 1965 he initiated the Youth in Transition project and has authored five books and numerous articles based on that research. His scientific publications focus on youth and social issues, and his current research interests include drug use and attitudes about drugs; other values, attitudes, and behaviors of youth; military plans and experiences; and public opinion as related to a number of other social issues.

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Research Professor at the University of Michigan's Institute for Social Research and co-principal investigator on the Monitoring the Future study. He received his Ph.D. degree in Psychology from the University of Michigan in 1975 and has been associated with the Monitoring the Future project since then. His publications deal with alcohol, tobacco, and illicit drug use and related attitudes and beliefs. His research interests also include causes and consequences of drug use, drinking and driving, social epidemiology of drug use, and longitudinal survey data analysis techniques.

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Research Professor at the University of Michigan's Institute for Social Research and Center for Human Growth and Development, Professor of Developmental Psychology in the Department of Psychology, and co-principal investigator on the Monitoring the Future study. He received his Ph.D. in Human Development and Family Studies from Penn State University in 1987 and has been associated with the Monitoring the Future project since 1991. He has published widely on several topics concerning adolescent development and the transition to young adulthood. His recent research focuses on the etiology and prevention of alcohol and other drug use, on the link between developmental transitions and health and well-being, and on the conceptualization and analysis of developmental change.

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Associate Professor at the University of Pittsburgh's School of Social Work, Visiting Associate Professor at the University of Michigan's School of Social Work, and a Faculty Associate at the Institute for Social Research. He earned his BA from the University of Chicago in 1987 and his Ph.D. from the University of Michigan in 1991. From 1991 to 1994 he was a National Science Foundation Postdoctoral Fellow. His research has appeared in a number of professional journals, books and monographs. His current research focuses on drug use among African American youth; the disproportionate availability of alcohol, tobacco, and other drugs in African American communities; the role of religion as a protective factor against adolescent problem behaviors; and the design of culturally specific substance abuse prevention programs.

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