[Results of research on therapeutic factors and treatment effectiveness of group therapy with adolescent patients].

Group therapy with adolescents suffers from a lack of empirical studies although this specific therapeutic setting has been described in clinical reports as particularly beneficial. This article provides a survey of available controlled outcome- and process-studies in group therapeutic settings with adolescents covering publications up to 1992. Future research topics in adolescent group therapy investigations are being discussed while comparing results and questions of group therapy research with adult clientels and their possible application to research with adolescents in groups.