Randomized Trial of Prize-Based Reinforcement Density for Simultaneous Abstinence from Cocaine and Heroin
Saved in:
| Title: | Randomized Trial of Prize-Based Reinforcement Density for Simultaneous Abstinence from Cocaine and Heroin |
|---|---|
| Language: | English |
| Authors: | Ghitza, Udi E., Epstein, David H., Schmittner, John |
| Source: | Journal of Consulting and Clinical Psychology. Oct 2007 75(5):765-774. |
| Availability: | American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications |
| Peer Reviewed: | Y |
| Physical Description: | |
| Page Count: | 10 |
| Publication Date: | 2007 |
| Document Type: | Journal Articles Reports - Evaluative |
| Descriptors: | Narcotics, Reinforcement, Probability, Intervention, Control Groups, Drug Rehabilitation, Cocaine, Drug Use, Rewards, Drug Use Testing, Outcomes of Treatment |
| ISSN: | 0022-006X |
| Abstract: | To examine the effect of reinforcer density in prize-based abstinence reinforcement, heroin/cocaine users (N = 116) in methadone maintenance (100 mg/day) were randomly assigned to a noncontingent control group (NonC) or to 1 of 3 groups that earned prize draws for abstinence: manual drawing with standard prize density (MS) or computerized drawing with standard (CS) or high (CH) density. Probabilities (prizes/draw) were standard (50%) and high (78%); prize density was double blind. Mean prize values were CH, $286; CS, $167; MS, $139; and NonC, $171. Outcomes were % opioid/cocaine-negative urines during the 12-week intervention and then 8 weeks postintervention as well as diagnosis of dependence up to 6 months poststudy. CH had significantly more negative specimens than did NonC during intervention and had more than all groups during postintervention treatment: Mean % negative (95% confidence interval) during postintervention treatment adjusted for baseline drug use and dropout were CH, 55% (14%-90%); CS, 7% (1%-27%); MS, 4% (1%-12%); and NonC, 3% (1%-10%). Current cocaine dependence diagnoses after treatment were significantly lower in contingent compared with noncontingent groups. Computerized drawing with higher-density prizes enhanced reduction of cocaine use; abstinence reinforcement had long-term therapeutic benefits. |
| Abstractor: | Author |
| Entry Date: | 2007 |
| Access URL: | https://content.apa.org/journals/ccp/75/5/765 |
| Accession Number: | EJ776901 |
| Database: | ERIC |
Be the first to leave a comment!
