ABSTRACT
The purpose of this article is to encourage social workers in health care sellings to evaluate the effectiveness of their practice. Recent studies of intervention outcome in health care settings are reviewed on four dimensions. Because most of these utilize large group designs and social workers in direct practice rarely conduct this type of research, single-system designs are proposed as a complementary and feasible approach to evaluation. Issues in the use of single-system designs within health care settings and a case example will be discussed.
