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. Kaplan is an elected member of the National Academy of Education and serves as the chair of its Research Advisory Committee. He is a recipient of the UW-Madison Hilldale Award in the Social Sciences; a recipient of the Samuel J. Messick Distinguished Scientific Contributions Award from the APA (Division 5); a past-President of the Society for Multivariate Experimental Psychology; a fellow of the APA (Division 5); a recipient of the Alexander Von Humboldt Research Award; a Research Affiliate of the Leibniz Institute for Educational Trajectories; and was a Jeanne Griffith Fellow at NCES. Kaplan also held the Johann von Spix International Visiting Professorship at the University of Bamberg and the Max Kade Visiting Professorship at the University of Heidelberg. Kaplan’s current program of research focuses on the development of Bayesian methods applied to the design and analysis of large-scale educational assessments. His specific interests include: Bayesian model averaging, probabilistic forecasting, and Bayesian historical borrowing with applications to cross-sectional and longitudinal large-scale educational assessments such as the OECD Program for International Student Assessment (PISA) and the Early Childhood Longitudinal Study. Kaplan has been actively involved with the PISA program 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. He served on the Questionnaire Expert Group for the OECD Teaching and Learning International Survey (TALIS) and currently serves on the Design and Analysis Committee and the Questionnaire Standing Committee for the National Assessment of Educational Progress (NAEP). Kaplan received his Ph.D. in education from UCLA in 1987.