“…Perhaps motivated by the mixed results presented in outcome studies of substance use services, some have called for the development of more comprehensive programs (Evenson, Binner, Cho, Schicht, & Topolski, 1998;Humphreys & Tucker, 2002;Institute of Medicine, 1990;McLellan, Weinstein, Shen, Kendig, & Levine, 2005). This quest is motivated by a number of factors.…”