Handicapped individuals matched on self-reported assertiveness were assigned to one of two conditions: (a) treatment subjects who received assertion training and (b) waiting-list-control subjects who received no treatment for 5 weeks and then received assertion training. Behavioral role playing, self-report, and activity budget pretest and posttest measures revealed that assertion-training subjects reported significantly greater gains in assertive behavior and showed greater improvement in performance on seven criterion measures than did control subjects. Eighteen criterion measures did not show any differences between treatment and control groups.

No abstract