The Balthazar Scales of Adaptive Behavior II (BSAB-II) provides a system for program development and evaluation and for social behavior assessment of profoundly and severely mentally retarded individuals as well as of the younger less retarded and emotionally disturbed individuals. The specimen set consists of six parts: a Manual, a Tally Sheet and Scoring Summary Sheet, optional forms such as a Ward Supervisor and Staff Information Sheet, a Program Information Sheet, and a Pre-Baseline Information Sheet. Eight social scale categories are included as well as 19 separate scales including a checklist and 72 subscale items. A description of the behaviors observed at a given time in a specific residential population (not to be considered a normative table) is included. Among those measured are autistic and severely emotionally disturbed individuals. Play behaviors, response to instructions, verbal communication, adaptive and nonadaptive behaviors are measured as well. The BSAB-II is the result of a factor analysis of social coping behaviors observed in other studies (1964-1972). Several paradigms are included to serve as models for program evaluation and assessment. The scales may be administered by professional individuals or by technicians who are supervised by professionals. (Author/MLP)