Abstract
45 incarcerated male felons in a medium-security state correctional institution participated in a Rational Behavior Training treatment outcome study. 58% of the subjects were white, 18% were African-American, 17% were Hispanic, and 7% were classified as other. Subjects were selected from an institutional group-therapy waiting list and randomly assigned to one of four group facilitators. The Novaco Provocation Inventory, Buss-Durkee Hostility Inventory, and Rational Behavior Training Concepts Test were administered before and after the 10-wk. treatment period. No differences in gain scores (pretest minust posttest) were observed although the slightly greater improvement on the concepts test by subjects of ethnic minority encourages further study.