The English original form of a standardized social interview was presented by Clare and Cairns (1978). The German version is described with regard to concept, structure, and methodology. The interview is designed to assess social maladjustment by measuring three conceptual categories (“Objective Material Conditions,” “Social Management,” and “Satisfaction”) in eight role areas. The instrument is especially suited for outcome assessment in various clinical and non-clinical populations and takes an average of about 30–45 min to complete. The 39 items are rated on 4-point scales either by the interviewer with the help of an extensive rating manual, or by the subject himself (all “Satisfaction” items). The results of a reliability study are presented using both the test-retest and the interrater method. In general, the results show that the instrument is satisfactorily reliable, but some possible weaknesses are discussed. Finally, the structure of the instrument is examined by an analysis of interrelationships between the items in a normal population sample. The results are discussed with regard to questions of score construction.