Small group research may be divided into three areas: individuals and groups compared; the internal dynamics of groups; and groups as they relate to one another and the environment. Studies comparing the efficiency of individuals as compared with individuals in groups suggest that persons do not do their best in groups, at least on intellectual tasks; but the type of group may influence achievement. People influence each other and there is a tendency to conform to group norms. Lewin, in his "field theory" pointed out that groups should be regarded as dynamic wholes with interdependent parts. Dynamics of groups are an important area for research and such research has important contributions to make to adult education. Sociological study of groups (rural neighborhoods, communities, and organizations) has concentrated on real groups, the many groups in most settings, and the fact that a person may belong to several "roups. The rediscovery of the primary group, or clique, answered many questions about individual behavior and suggested that the influence of the small group must be considered in program evaluation. (sg)