The present study demonstrated that complex "here-and-now" affective verbalizations, basic to most experiential or therapeutic groups, could be reliably induced in a group by simple reinforcement techniques. Further, reinforcement produced levels of performance equivalent to that induced by therapists. (Author)

Among the findings was that the heterogeneous groups showed more change on the FIRO scale. Also, on rating scales measuring positive feeling towards group, the initial superiority of homogeneous groups was reduced by the end of the T group and that heterogeneous groups manifested more significant increases. (Author/CG)

Assessed impact of professional involvement in mutual help groups for mentally ill. Compared social climate and behavioral data on members in groups led by either mental health professional or indigenous group member. Found more formal, psychologically direct approach in professionally led group. Professional involvement appeared to affect both…