Group therapy and addiction treatment are natural allies. One reason is that people who abuse substances often are more likely to remain abstinent and committed to recovery when treatment is provided in groups, apparently because of rewarding and therapeutic forces such as affiliation, confrontation, support, gratification, and identification. This capacity of group therapy to bond patients to treatment is an important asset because the greater the amount, quality, and duration of treatment, the better the client’s prognosis (Leshner 1997; Project MATCH Research Group 1997).
The effectiveness of group therapy in the treatment of substance abuse also can be attributed to the nature of addiction and several factors associated with it, including (but not limited to) depression, anxiety, isolation, denial, shame, temporary cognitive impairment, and character pathology (personality disorder, structural deficits, or an uncohesive sense of self). Whether a person abuses substances or not, these problems often respond better to group treatment than to individual therapy (Kanas 1982; Kanas and Barr 1983). Group therapy is also effective because people are fundamentally
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