[PSP Scale: German version of the Personal and Social Performance Scale: valid instrument for the assessment of psychosocial functioning in the treatment of schizophrenia].

In the treatment of schizophrenia, the domain of psychosocial functioning is an important aspect of therapeutic success that should be considered in addition to the reduction of psychopathology. Valid and standardised measures are necessary for diagnostics and the assessment of patients" personal, social and professional functioning. The German version of the Personal and Social Performance (PSP) Scale (with its four subdimensions: "socially useful activities, work and study included", "personal and social relationships", "self-care" and "disturbing and aggressive behaviour") was administered to patients with schizophrenia in previous studies. These data demonstrated this scale to be a reliable, valid and efficient tool for measuring psychosocial functioning in schizophrenia. Thus, it is argued that, for everyday clinical practice, the PSP Scale is useful for the assessment of psychosocial functioning in schizophrenia during short, medium and long-term treatment courses.