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Johnson, Mark B.; Voas, Robert A.; Miller, Brenda A.; Holder, Harold D. – Evaluation Review, 2009
Most information on the prevalence of drug use comes from self-report surveys. The sensitivity of such information is cause for concern about the accuracy of self-report measures. In this study, self-reported drug use in the last 48 hr is compared to results from biological assays of saliva samples from 371 young adults entering clubs. The…
Descriptors: Drug Use, Young Adults, Music Activities, Measurement Techniques
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Donlin, Wendy D.; Knealing, Todd W.; Needham, Mick; Wong, Conrad J.; Silverman, Kenneth – Journal of Applied Behavior Analysis, 2008
This study assessed whether attendance rates in a workplace predicted subsequent outcome of employment-based reinforcement of cocaine abstinence. Unemployed adults in Baltimore methadone programs who used cocaine (N = 111) could work in a workplace for 4 hr every weekday and earn $10.00 per hour in vouchers for 26 weeks. During an induction…
Descriptors: Unemployment, Cocaine, Patients, Multiple Regression Analysis
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Gottfredson, Denise C.; Kearley, Brook W.; Najaka, Stacy S.; Rocha, Carlos M. – Journal of Research in Crime and Delinquency, 2007
This study examines program elements related to reductions in drug use and crime among Drug Treatment Courts (DTC) participants as well as theoretical mechanisms--increased social controls and improved perceptions of procedural justice--expected to mediate the effects of DTC on these outcomes. Data are from 157 research participants interviewed…
Descriptors: Crime, Social Control, Courts, Drug Use Testing