Prize-based contingency management for the treatment of substance abusers: a meta-analysis
AIM: To review randomized controlled trials to assess efficacy of a prize-based contingency management procedure in reducing substance use (where a drug-free breath or urine sample provides a chance of winning a prize).; METHODS: A meta-analysis was conducted on papers published from January 2000 to February 2013 to determine the effect size of studies comparing prize-based contingency management to a treatment-as-usual control condition (kâ€‰=â€‰19 studies). Parallel analyses evaluated the efficacy of both short- (kâ€‰=â€‰nine studies) and long-term outcomes (kâ€‰=â€‰six studies) of prize-based contingency management.; RESULTS: The average end-of-treatment effect size (Cohen's d) was 0.46 [95% confidence interval (CI)â€‰=â€‰0.37, 0.54]. This effect size decreased at the short-term (â‰¤3-month) post-intervention follow-up to 0.33 (95% CIâ€‰=â€‰0.12, 0.54) and at the 6-month follow-up time-point there was no detectable effect [dâ€‰=â€‰-0.09 (95% CIâ€‰=â€‰-0.28, 0.10)].; CONCLUSION: Adding prize-based contingency management to behavioral support for substance use disorders can increase short-term abstinence, but the effect does not appear to persist to 6 months.
Addiction (Abingdon, England)
Benishek, L.; Dugosh, K.; Kirby, K.; Matejkowski, J.; Clements, N.; Seymour, B.; and Festinger, David, "Prize-based contingency management for the treatment of substance abusers: a meta-analysis" (2014). PCOM Scholarly Papers. 1698.