Bruce J. Biddle is a social psychologist and a professor emeritus at the University of Missouri, Columbia, Missouri. A former director of a research center, founding editor of a major journal, and frequent visitor to other campuses (particularly in Australia), his research and scholarship have centered on role theory, the role of the teacher, classroom interaction, youth decision making, the impact of research on social policy, the misuse of research knowledge by advocates, and youth poverty and its impact within education. Larry J. Saha is a sociologist and a reader at the Australian National University, Canberra, ACT, Australia. A former departmental chair, former Dean of his College, current editor of a major journal, and frequent visitor to other campuses (particularly in the United States and Sweden), his research and scholarship have centered on the sociology of education, social change and development, rural and urban community life, attitudes and motivation, and collective behavior.