Enhanced and Attendance-Based Prize CM in Community Settings

Description:
The purpose of this study is to address the conditions under which prize contingency management (CM) for abstinence and attendance may improve outcomes of substance dependent patients. Patients are randomly assigned to (a) standard, non-CM treatment, (b) standard treatment plus prize CM for abstinence, with an expected probability of winning about $250 in prizes, (c) standard treatment plus prize CM, with an expected probability of winning about $560 in prizes, in which there is an increased frequency of winning prizes during the first two weeks of the study, or (d) prize CM for treatment attendance. Urine and breath samples are collected 3x/week during Weeks 1-3, 2x/week during Weeks 4-6 and 1x/week during Weeks 7-12. Follow-up interviews are conducted at 1,3,6 and 9 months following intake during which substance use and psychosocial functioning are assessed.