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Direct linkPetry, Nancy M.; Alessi, Sheila M.; Hanson, Tressa – Journal of Consulting and Clinical Psychology, 2007
Contingency management (CM) treatments enhance drug abstinence. This study evaluated whether CM also improves quality of life and if these effects are mediated by abstinence. Across 3 independent trials, cocaine abusers in intensive outpatient treatment (n = 387) were randomly assigned to 12 weeks of standard treatment as usual or standard…
Descriptors: Quality of Life, Contingency Management, Cocaine, Outcomes of Treatment
Petry, Nancy M.; Alessi, Sheila M.; Hanson, Tressa; Sierra, Sean – Journal of Consulting and Clinical Psychology, 2007
Contingency management (CM) interventions frequently utilize vouchers as reinforcers, but a prize-based system is also efficacious. This study compared these approaches. Seventy-four cocaine-dependent methadone outpatients were randomly assigned to standard treatment (ST), ST plus a maximum of $585 in contingent vouchers, or ST plus an expected…
Descriptors: Cocaine, Contingency Management, Patients, Reinforcement
Petry, Nancy M.; Martin, Bonnie; Simcic, Francis – Journal of Consulting and Clinical Psychology, 2005
In this study, the authors evaluated a low-cost contingency management (CM) procedure for reducing cocaine use and enhancing group therapy attendance in 77 cocaine-dependent methadone patients. Patients were randomly assigned to 12 weeks of standard treatment or standard treatment with CM, in which patients earned the opportunity to win prizes…
Descriptors: Reinforcement, Group Therapy, Contingency Management, Cocaine
