An analysis of theory and research in social psychology reveals that while methods of research are scientific in character, theories of social behavior are primarily reflections of contemporary history. The dissemination of psychological knowledge modifies the patterns of behavior upon which the knowledge is based. It does so because of the prescriptive bias of psychological theorizing, the liberating effects of knowledge, and the resistance based on common values of freedom and individuality. In addition, theoretical premises are based primarily on acquired dispositions. As the culture changes, such dispositions are altered, and the premises are often invalidated. Several modifications in the scope and methods of social psychology are derived from this analysis.