Models of Psychotherapy Outcome: Are They Applicable in Training Clinics?

To explore whether psychotherapy models are applicable in the training clinic setting, the dose-effect model of psychotherapy outcome was tested in the outpatient clinic of an American Psychological Association-approved doctoral training program in clinical psychology. Outcome data, using the Outcome Questionnaire 45.2, were gathered immediately prior to each psychotherapy session during the course of treatment (mean total number of sessions: 14.81). Sixty-one clients, treated by 21 trainee clinicians, participated. Although a similar pattern emerged, response to treatment was not as rapid as the dose-effect model would predict. Ideas for future research are proposed.