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Practical Application of Contingency Management Michael J. McCann, MA Matrix Institute on Addictions
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Elements of Treatment: Information, Persuasion, and Medication Information –Matrix Model –CBT –12-Step Persuasion –Motivational Interviewing –Confrontation –Contingency Management
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Motivational Interventions If you build it they will not necessarily come. And, if they do come, they may not come all of the time. Hence: –Motivational Interviewing –Contingency Management
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Contingency Management (CM) CM: application of reinforcement contingencies to urine results or behaviors (attendance in treatment; completion of agreed upon activities). Research consistently shows that it works.
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Contingency Management: Overview 1. Research findings 2. Application of CM in the Matrix Institute NTP 3. Practical application of CM
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Contingency Management: Research Findings Effective with wide variety of abused substances –Nicotine –Alcohol –Heroin –Benzodiazepines –Cocaine and Methamphetamine
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Research Findings Highlight efficacy Raise questions about real-world applicability
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Contingency Management: Steve Higgins, Ph.D. Community Reinforcement Approach (CRA) –Marital Therapy –Vocational Assistance –Skills Training –New social and recreational activities –Antabuse Vouchers ($977)
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Contingency Management: Higgins et al., 1993 –24-week treatment –3 times per week urines –Conditions Standard treatment CRA plus vouchers
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Contingency Management: Higgins et al., 1994 –24-week treatment –3 times per week urines –Conditions CRA only CRA plus vouchers
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Contingency Management: Higgins et al., 1993
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Contingency Management: Higgins et al., 1994 –How much of CRA effect is CM? –24-week treatment –3 times per week urines –Conditions CRA only CRA plus vouchers
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Contingency Management: Higgins et al., 1994
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Contingency Management: Rawson et al., 2002 Cognitive-Behavioral Treatment vs CM –Cocaine users –16 weeks –3 visits per week
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Contingency Management: Rawson et al., 2002 Cognitive-behavioral Treatment (CBT) –90 minute groups –Cognitive/behavioral –Drug cessation –Lifestyle change –Relapse prevention
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Contingency Management: Rawson et al., 2002 Contingency Management –Vouchers for stimulant-free urines –Progressive schedule –Bonuses for 3 consecutive clean ($10) –Reset with 5 clean –Total earnings possible: $1277
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Contingency Management: Rawson et al., 2002 Cocaine-using methadone patients Four conditions: –CM –CBT –CBT & CM –Methadone only
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Cocaine-free Urine Samples During Study Rawson et al., 2002 P<.001 CM>MM CBT & CM>MM
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Percent Subjects Achieving 3 Consecutive Weeks Cocaine-free Rawson et al., 2002 P<.02 CM>MM CBT & CM >MM
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Days used cocaine in past month Rawson et al., 2002 Week 26: CM<MM; CBT<MM Week 52: CBT<MM
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CBT Group Attendance Rawson et al., 2002 P<.04
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Contingency Management in Treatment Conclusion: CM works
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Contingency Management in Treatment CM is not always popular with counselors. “Simply getting clean should be reward enough.” Other problems: Schedules are too complicated. Too expensive for the average clinic. The cost of vouchers exceeds what some clinics are reimbursed for a treatment episode.
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CM in Practice in an NTP Treatment enhancements (RP groups, women’s groups, stimulant groups, HIV and Hep-C education, low cost CM) $5 per month for perfect group attendance $5 per month for perfect medication attendance
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Perfect medication attendance Pre-post contingencies, n=49 P<.05
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Perfect group attendance Pre-post contingencies, n=49 P<.01
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Perfect group attendance in patients missing pre-CM, n=20
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Groups attended in patients missing pre-CM, n=20 P<.005
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CM in an NTP: Conclusions A simple, low cost CM intervention can improve patient attendance in groups and medication visits.
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CM with Matrix Model Treatment May improve engagement of new patients May improve retention of patients May improve treatment outcomes
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CM with Matrix Model Treatment Challenges –Must be simple Easy to track—Need to keep a record of attendance Easy to figure rewards—no progressive schedules, resets, etc. Little burden on the counselor
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CM with Matrix Model Treatment Challenges –Must be inexpensive A less expensive method may be a bit less effective, but an expensive method will never be used. A little reward goes a long way especially combined with praise and recognition
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CM with Matrix Model Treatment: Some examples Food available for 10 minutes after group starts Weekly reward for patients who attend all groups each week Monthly reward for patients who attend all groups each month
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CM with Matrix Model Treatment: Some examples Raffles vs guaranteed reinforcement Certificates, plaques, food, goods, money, etc. Combine with social reinforcement
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Conclusions CM can be effectively used in clinical settings Low cost reinforcers can be effective Simple schedules can be effective Increased attendance can offset cost with fee-for-service billing
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