Original ArticleGroup Cognitive Behavior Therapy or Social Skills Training for Individuals With a Recent Onset of Psychosis? Results of a Randomized Controlled TrialLecomte, Tania PhD*; Leclerc, Claude PhD†; Corbière, Marc PhD‡; Wykes, Til PhD§; Wallace, Charles J. PhD∥; Spidel, Alicia PhD¶ Author Information *Department of Psychology, Université de Montréal; †Department of Mental Health Nursing, Université du Québec à Trois-Rivières; ‡Department of Rehabilitation, Université Sherbrooke, Quebec, Canada; §Department of Psychology, Institute of Psychiatry, London, United Kingdom; ∥PsychRehab Program, University of California at Los Angeles, Los Angeles, California; and ¶Department of Psychology, University of British Columbia, British Columbia, Canada. Supported by grant 43975 from the Canadian Institutes of Health Research (CIHR; to T.L., C.L., T.W., and C.J.W.). The corresponding author also benefited from a salary award from CIHR to conduct this study. Send reprint requests to Tania Lecomte, PhD, Département de Psychologie, Université de Montréal, Bur C-363, 90 rue Vincent d'Indy, C.P. 6128, Succ. Centre-Ville, Montréal, QC, H3C 3J7. E-mail: [email protected]. The Journal of Nervous and Mental Disease: December 2008 - Volume 196 - Issue 12 - p 866-875 doi: 10.1097/NMD.0b013e31818ee231 Buy Metrics Abstract This study aimed at determining the effectiveness of group cognitive behavior therapy (CBT) for recent onset psychosis in comparison with a recognized intervention for individuals with severe mental illness–social skills training. One hundred twenty-nine participants took part in a single-blind randomized controlled trial with repeated measures (baseline, 3 months, and 9 months). Participants were randomized to 1 of 3 conditions: group CBT, group social skills training for symptom management, or a wait-list control group. Both interventions were delivered by mental health staff with minimal training. Both treatments resulted in improvements on positive and negative symptoms compared with the wait-list control group, with the CBT group having significant effects over time on overall symptoms, and post-treatment effects on self-esteem, and active coping skills compared with the wait-list control group and lower drop-out rates than the skills training group. Therapist fidelity was adequate for both treatment conditions. Group CBT for psychosis is a promising intervention for individuals with recent onset of psychosis and their mental health professionals. © 2008 Lippincott Williams & Wilkins, Inc.