[Documentation and control of the change process in group psychotherapy].

The practicabilites of applying methods for the representation and control of defined process data from a pragmatic aspect are described, and the significance of some methods to interpret a relevant therapeutic situation as well as to reveal the result obtained in therapy is specified. The actual possibilities to mathematicise the individual process characteristics apply to the definitions of three phases of therapy and permit to determining certain constellations in terms of being beneficial to or an obstacle for therapy. From this follow the relatively objective elements for supervision, in particular the qualification of group trainers within a uniform model of therapy and settings.