Journal
JOURNAL OF CONSULTING AND CLINICAL PSYCHOLOGY
Volume 68, Issue 6, Pages 1051-1061Publisher
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/0022-006X.68.6.1051
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- NIDA NIH HHS [R-29DA08655] Funding Source: Medline
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Sixty individuals seeking outpatient treatment for marijuana dependence were randomly assigned to 1 of 3 treatments: motivational enhancement (M), M plus behavioral coping skills therapy (MBT), or MBT plus voucher-based incentives (MBTV). In the voucher-based incentive program, participants earned vouchers exchangeable for retail items contingent on them submitting cannabinoid-negative urine specimens. MBTV engendered significantly greater durations of documented marijuana abstinence during treatment compared with MBT and M, and a greater percentage of participants in the MBTV group compared with the MBT or M groups were abstinent at the end of treatment. No significant differences in marijuana abstinence were observed between the MBT and M groups. The positive effects of the voucher program in this study support the utility of incentive-based interventions for the treatment of substance dependence disorders including marijuana dependence.
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