David Kaplan is the Patricia Busk Professor of Quantitative Methods in the Department of Educational Psychology at the University of Wisconsin-Madison. Kaplan holds affiliate appointments in the University of Wisconsin’s Department of Population Health Sciences and the Center for Demography and Ecology, and is also an Honorary Research Fellow in the Department of Education at the University of Oxford. Kaplan’s program of research focuses on the development Bayesian statistical methods for education research. His work on these topics is directed toward applications to large-scale cross-sectional and longitudinal survey designs. He is actively involved in the OECD Program for International Student Assessment (PISA) where he served on its Technical Advisory Group from 2005-2009 and its Questionnaire Expert Group from 2004-present where he served as the Chair of the Questionnaire Expert Group for PISA 2015 and remains a member of the Questionnaire Expert Group for PISA 2018. Kaplan also sits on the Design and Analysis Committee and the Questionnaire Standing Committee for the National Assessment of Educational Progress (NAEP). Kaplan is an elected member of the National Academy of Education, a recipient of the Humboldt Research Award, a fellow of the American Psychological Association (Division 5), and was a Jeanne Griffith Fellow at the National Center for Education Statistics. Kaplan received his Ph.D. in education from UCLA in 1987.