Elmo Roper Author

Elihu Katz teaches at the Annenberg School for Communication at the University of Pennsylvania, and is Emeritus Professor of Sociology and Communication at the Hebrew University of Jerusalem. He is the coauthor or coeditor of more than 20 books including Medical Innovation: A Diffusion Study. Paul F. Lazarsfeld (1901-1976), one of the major figures in twentieth-century sociology, was the founder of Columbia University's Bureau for Applied Social Research. He is the coauthor of Marienthal, available from Transaction. Elmo Roper (died 1971) founded the Roper Center for Public Opinion Research, located at the University of Connecticut, just after World War II.