Dr. Small’s research interests include causal inference, design, and analysis of experiments and observational studies for comparing treatments, longitudinal data, measurement error, and applications of statistics to health and public policy. He has served the statistical community by acting as an Associate Editor for numerous journals, including the Journal of Educational and Behavioral Statistics, The American Statistician, Journal of Causal Inference, Journal of the Royal Statistical Society, Series B, and the Journal of Quantitative Analysis in Sports. He is the founding Editor of Observational Studies.