Stages of Change

Quitting drug use will be measured using a modification of the Motivation Scales, including Drug Use Problems, Desire for Help, and Treatment Readiness, from the data instruments developed by Simpson et al. for the Drug Abuse Treatment, Assessment, and Research Project (Simpson, Joe, Broome et al., 1997). The instrument, SOC, has excellent predictive validity relative to treatment entry (Booth, Kwiatkowski, Iguchi, Pinto, & John, 1998) and its test-retest reliability is 90%. It will serve as a measure of the TA Intervention’s ability to increase motivation for treatment.