50
Participants
Start Date
January 31, 2006
Primary Completion Date
June 30, 2009
Study Completion Date
January 31, 2010
Cannabis-Consumption-Reduction-Training
8 sessions within 4 weeks (twice a week, 45 minutes each) Cognitive behavioral therapy with focus on cannabis abuse
Social competence Training
8 sessions within 4 weeks (twice a week, 45 minutes) training to develop and ameliorate social competences
University of Konstanz, Konstanz
University of Konstanz
OTHER