Four encounter groups were run using 41 undergraduates at Utah State University to measure the effects of leadership style, member vii socio-political subculture, and member personality on the quantity and quality of group interaction, and on member satisfaction. Using Kerlinger's Social Attitudes Scale, the subjects were divided into subgroupings of "conservatives" and "liberals." One conservative group and one liberal group were each conducted by a leader acting in a non-directive style, while one conservative and one liberal group were run by a leader acting in a directive style. The California Psychological Inventory was administered to the subjects to gain information on the personality traits of the individuals, and a questionnaire was used to measure member satisfaction. Each group met for six sessions, and the groups were rated for interaction using the Hill Interaction Matrix. Using an analysis of covariance, the results showed that the group led by the non-directive leader resulted in more interaction, and that this interaction was of a ''member-centered" work type. A statistical relationship was also found between the personality of group members and: 1) quantity and quality of interaction, 2) member satisfaction, and 3) the socio-political subculture of the members. An interaction effect between leadership style and socio-political subculture of the subjects was found to affect member satisfaction. Conservatives preferred a directive leader, while liberals preferred a non-directive leader. Finally, a trend was found suggesting a difference in group interaction due to the socio-political subculture of an individual. Implications for other types of groups, and for therapy and counseling, were discussed.