Ann Arbor, MI 48104
Principal Investigator of the MTF MAIN project, which includes school sampling and recruiting, in-school surveys, and analyses of both the in-school and panel data (he is also co-investigator on the MTF Panel grant). He is a Research Professor at the University of Michigan's Institute for Social Research. He received his Ph.D. degree in Sociology from the University of North Carolina at Chapel Hill and a MPH degree from Johns Hopkins University. His work focuses on trends in substance use, with an emphasis on disentangling how these trends vary by age, historical period, and birth cohort membership. Other research interests include the rapid growth of vaping in recent years and its long term consequences, as well as the effects of recreational marijuana laws on adolescent substance use.