The efficacy of teaching psychology students exposure and response prevention for obsessive-compulsive disorder.

The aim of the study was to investigate whether inexperienced student therapists could successfully learn exposure and response prevention for obsessive-compulsive disorder. Twenty out of 21 outpatients completed treatment as delivered by ten psychology students. A total of 60 hours group supervision and approximately 30 hours with individual supervision was given to the students over the course of three semesters. Large effect sizes were observed for measures of symptoms and depression. Sixty-two percent (N= 13) of the intent to treat group achieved clinical significant change and 81% no longer met the diagnosis criteria (N= 17). The treatment effects observed at the 6 month follow-up period were promising. The results are encouraging for training students in evidence based treatment for specific disorders.