This collection of essays examines how the social sciences in America were developed as a means of social reform and later, especially after World War II, as a tool in federal policymaking and policy analysis. It also uses arenas of policymaking, such as early childhood education and welfare and its reform, as case studies in which social research was used, in policy decisions or in setting and evaluating policy goals. The book is written to aid students of public policy to appreciate the complex relationship of information–principally, of social science research–to policymaking at the federal level. David L. Featherman is Professor of Sociology and Psychology, Director and Senior Research Scientist, Institute for Social Research, University of Michigan. Maris A. Vinovskis is Bentley Professor of History, Senior Research Scientist, Institute for Social Research, Faculty member, School of Public Policy, University of Michigan.