Christopher Winship, Diker-Tishman Professor of Sociology, and Harvard Kennedy School of Government faculty member, holds his BA in sociology and mathematics from Dartmouth College and PhD in sociology from Harvard. He held postdoctoral fellowships at the Institute for Research on Poverty at the University of Wisconsin and National Opinion Research Center at the University of Chicago. He was a Professor of Sociology, Statistics, and Economics (by courtesy) at Northwestern University, and served as director of the Program in Mathematical Methods in the Social Sciences before he returned to Harvard in 1992. He has edited Sociological Methods & Research since 1995. He is affiliated with the Harvard Institute for Quantitative Social Science, and Harvard Hauser Center for Nonprofit Organizations. He researches The Ten Point Coalition, a group of black ministers working with the Boston police to reduce youth violence; statistical models for causal analysis; effects of education on mental ability; causes of racial difference in performance at elite post-secondary institutions; and changes in the racial differential in imprisonment rates.