A reinforcement-based therapeutic workplace for the treatment of drug abuse: Three-year abstinence outcomes

Kenneth Silverman, Dace Svikis, Conrad J. Wong, Jacqueline Hampton, Maxine L Stitzer, George Bigelow

Research output: Contribution to journalArticle


Long-term Therapeutic Workplace effects were evaluated in heroin- and cocaine-dependent, unemployed, treatment-resistant young mothers. Participants were paid to work or to train in the Therapeutic Workplace but had to provide drug-free urine samples to gain daily access. Participants (N = 40) were randomly assigned to a Therapeutic Workplace or usual care control group. Therapeutic Workplace participants could work for 3 years. Relative to controls, Therapeutic Workplace participants increased cocaine (28% vs. 54% negative; p = .04) and opiate (37% vs. 60% negative; p = .05) abstinence on the basis of monthly urine samples collected until 3 years after intake. The Therapeutic Workplace can be an effective long-term treatment of cocaine and heroin addiction in poor and chronically unemployed young mothers.

Original languageEnglish (US)
Pages (from-to)228-240
Number of pages13
JournalExperimental and Clinical Psychopharmacology
Issue number3
StatePublished - Aug 2002


ASJC Scopus subject areas

  • Pharmacology
  • Experimental and Cognitive Psychology

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