Group therapy and individual cognitive therapy were investigated with non-bipolar moderate-to-severely-depressed outpatients (N=44) assigned to group cognitive therapy, individual cognitive therapy only, or to individual cognitive therapy in combination with anti-depressant medication. Treatment efficacy was measured by self-report and a clinical rating scale. Each of the three treatments was associated with a statistically significant improvement compared to pretreatment symptom levels. However, group therapy resulted in a less complete symptomatic remission than did individual therapy, with or without the addition of anti-depressant medication. Almost half of those who completed group treatment did not obtain a symptomatic remission. Results also indicated that anti-depressant medication did not add to either the rapidity or the overall degree of symptom reduction obtained with cognitive therapy alone conducted in an individual format. (Author)