[Interview and questionnaire of social support and social assistance SONET].

The present paper introduces into the structures, psychometric properties and the development of the "Interview on the Social Network and Social Support SONET". SONET is a network-analytical tool based on conceptual and methodological considerations related to the concepts of social network and social support. It was developed by the authors over the last few years. Discussing the most important results on its psychometric properties shows that SONET has good reliability, and acceptably high proof of its validity. Relative to rehabilitation of psychiatric and somatic disorders, SONET may be used in the diagnosis of deficits in social integration and interpersonal relationships of an individual. Additionally, stressful conditions of interpersonal relationships are assessed as well. SONET is also suitable for evaluating rehabilitative interventions at the level of personal relationships. Because no single-case studies have been conducted with the instrument until now, the paper concludes by presenting results from a small sample of schizophrenic and depressive patients demonstrating its applicability for diagnostic, prognostic and evaluative problems in the field of rehabilitation.