for Research on Educational Effectiveness and serves on the editorial board of Evaluation Review and other journals. He is an elected fellow of both the American Academy of Arts and Sciences and the American Statistical Association, and a lifetime National Associate of the National Academies. His work focuses on research methods for determining the severity and scope of social and education problems, implementation of programs and policies, and estimating the effects and the effectiveness of interventions. He contributes to work on randomized trials in education and training, welfare reform, health services, housing, and crime and justice, with a particular interest in the assessment or improvement of programs sponsored by federal agencies and private foundations. He has a B.E. from Stevens Institute of Technology and a Ph.D. from Iowa State University.
Scott Holan is an assistant professor in the Department of Statistics at the University of Missouri–Columbia. His research interests include time series, Bayesian methods, nonparametric and semiparametric regression, data confidentiality, and spatial statistics. In 2005 he was awarded a research fellowship by the American Statistical Association/National Science Foundation/Bureau of Labor Statistics to work on problems involving seasonality and data confidentiality. In 2006, he was awarded a National Institute of Statistical Science new researcher fellowship to conduct research on data confidentiality. He has M.S. and B.S. degrees in mathematics from the University of Illinois, Chicago, and a Ph.D. in statistics from Texas A&M University.
Willie Pearson, Jr., is professor of sociology in the School of History, Technology, and Society at the Georgia Institute of Technology. He specializes in the sociology of science and the family. His most recent book is entitled Beyond Small Numbers: Voices of African American Ph.D. Chemists (2005). He has held postdoctoral fellowships at the Educational Testing Service and the Office of Technology Assessment, U.S. Congress. He is a fellow of the American Association for the Advancement of Science (AAAS). He has served as a lecturer in Sigma Xi’s Distinguished Lectureship Program; as chair of the National Science Foundation’s Committee on Equal Opportunities in Science and Engineering, and as chair of the AAAS Committee for Science, Engineering and Public Policy. Currently, he serves on advisory committees in the Education and Human Resources Directorate (National Science Foundation) and the Burroughs Wellcome Fund. He is a lifetime National Associate of the National Academies and is a member of