Effect of Reinforcement Probability and Prize Size on Cocaine and Heroin Abstinence in Prize-Based Contingency ManagementReport as inadecuate




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Journal of Applied Behavior Analysis, v41 n4 p539-549 Win 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 the size of the prize won (small, large, or jumbo) on likelihood of abstinence until the next urine-collection day for heroin and cocaine users (N = 116) in methadone maintenance. Higher probability of winning, but not the size of individual prizes, was associated with a greater percentage of cocaine-negative, but not opiate-negative, urines. (Contains 1 table and 2 figures.)

Descriptors: Cocaine, Outcomes of Treatment, Contingency Management, Reinforcement, Probability, Substance Abuse, Intervention

Society for the Experimental Analysis of Behavior. Available from: Department of Applied Behavioral Science. Kansas University, 1000 Sunnyside Avenue, Lawrence, KS 66045-2133. Tel: 785-841-4425; Fax: 785-841-4425; e-mail: behavior[at]mail.ku.edu; Web site: http://seab.envmed.rochester.edu/jaba/index.html





Author: Ghitza, Udi E.; Epstein, David H.; Schmittner, John; Vahabzadeh, Massoud; Lin, Jia-Ling; Preston, Kenzie L.

Source: https://eric.ed.gov/?q=a&ft=on&ff1=dtySince_1992&pg=2865&id=EJ823791







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