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Cocaine2
Contingency Management2
Intervention2
Reinforcement2
Behavior Modification1
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Journal of Applied Behavior…2
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Epstein, David H.2
Ghitza, Udi E.2
Preston, Kenzie L.2
Lin, Jia-Ling1
Schmittner, John1
Schmittner, John P.1
Schroeder, Jennifer R.1
Vahabzadeh, Massoud1
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Effect of Reinforcement Probability and Prize Size on Cocaine and Heroin Abstinence in Prize-Based Contingency Management
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Ghitza, Udi E.; Epstein, David H.; Schmittner, John; Vahabzadeh, Massoud; Lin, Jia-Ling; Preston, Kenzie L. – Journal of Applied Behavior Analysis, 2008
Although treatment outcome in prize-based contingency management has been shown to depend on reinforcement schedule, the optimal schedule is still unknown. Therefore, we conducted a retrospective analysis of data from a randomized clinical trial (Ghitza et al., 2007) to determine the effects of the probability of winning a prize (low vs. high) and…
Descriptors: Cocaine, Outcomes of Treatment, Contingency Management, Reinforcement
Randomized Trial Comparing Two Treatment Strategies Using Prize-Based Reinforcement of Abstinence in Cocaine and Opiate Users
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Preston, Kenzie L.; Ghitza, Udi E.; Schmittner, John P.; Schroeder, Jennifer R.; Epstein, David H. – Journal of Applied Behavior Analysis, 2008
We compared two strategies of prize-based contingency management (CM) in methadone-maintained outpatients. Urine was tested thrice weekly for 5 weeks pre-CM, 12 weeks CM, and 8 weeks post-CM. Participants were randomly assigned to a cocaine contingency (four prize draws for each cocaine-negative urine, N = 29) or an opiate-cocaine contingency (one…
Descriptors: Cocaine, Contingency Management, Reinforcement, Drug Use