A 1994 meta-analysis found that 62% of adolescents who participated in an adventure therapy group were at an advantage for coping with adolescent issues than those who did not. There is a 12% improvement in self-concept for adolescents who participate in adventure therapy. Adolescents are approximately 30% better off in their ability to cope with mental health issues than those who do not participate in a psychotherapeutic treatment, leading to the implication that adventure therapy effectiveness is comparable to the effectiveness of psychotherapeutic treatment.