Book reviewed in this article:
Ideally, programs for adolescents in psychiatric hospitals should be based on empirical studies of long‐term effectiveness of different treatment techniques. This paper reviews the literature and isolates six variables significantly related to long‐term outcome. Components of the process‐reactive variable are examined separately for predictive ability, and other variables that suggest directions for research are presented. Multivariate research designs examining combinations of refined outcome predictors are suggested.