Cognitive-behavioral group depression prevention compared to bibliotherapy and brochure control: nonsignificant effects in pilot effectiveness trial with college students.

Objective: Conduct a pilot trial testing whether a brief cognitive-behavioral (CB) group reduced depressive symptoms and secondary outcomes relative to bibliotherapy and brochure controls in college students with elevated depressive symptoms.

Methods: 82 college students (M age=19.0, SD=0.9; 70% female, 80% White) with elevated self-assessed depressive symptoms were randomized to a 6-session CB group, bibliotherapy, or educational brochure control condition, completing assessments at pretest, posttest, and at 6- and 12-month follow-up.

Results: Planned contrasts found no significant effects for CB group on depressive symptoms compared to either bibliotherapy or brochure controls at posttest (d=-.08 and .06, respectively) or over follow-up (d=-.04 and -.10, respectively). There were no intervention effects for social adjustment and substance use, though CB group participants had improved knowledge of CB concepts at posttest, versus brochure controls. Condition differences in major depression onset were nonsignificant but suggested support for CB interventions (CB group=7.4%, bibliotherapy=4.5%, brochure control=15.2%).

Conclusions: Unexpectedly modest support was found for a brief CB group depression prevention intervention, compared to bibliotherapy or brochure control, when provided to self-selected college students, suggesting that alternative screening or interventions approaches are needed for this population.