Abstract
Two matched therapy groups in an out patient clinic were studied for nine months, from start to termination, in terms of process and outcome. In the experimental group, the therapist was trained to use techniques of social reinforcement to facilitate the development of inter-member cohesiveness. In the comparison group, the therapist, who was matched by personality with the experimental group's therapist, used a more psychodynamic, intuitive, group-centred approach in dealing with the group.