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ABSTRACT
This exploratory study investigated the efficacy and feasibility of a contingency management (CM) protocol for adolescent smokers that included use of a reduction phase. Using a within-participants design, 19 adolescents completed three 7-day phases: (1) reinforcement for attendance and provision of breath samples (RA) phase, (2) a washout phase, (3) a CM phase, with order of CM and RA counterbalanced. In addition, participants were randomized to one of two reinforcement conditions during the CM phase: (1) CM-Abstinence condition (n = 9), wherein participants earned reinforcement only for carbon monoxide levels (CO) indicating abstinence; (2) CM-Reduction condition (n = 10), wherein participants earned reinforcement for reductions from baseline CO levels for the first half of the CM phase, followed by an abstinence contingency for the remainder of the phase. Compared with CM-Abstinence, adolescents in CM-Reduction demonstrated trends for more abstinent readings and had a significantly higher percentage of readings meeting criteria for reinforcement during the CM phase. Adolescents who received the RA phase first had lower CO readings during the subsequent CM phase than those who received CM first. Future research is warranted on the effects of introducing RA and other control conditions prior to administration of CM, on strengthening the magnitude of the reinforcement, on instituting reinforcement schedules that program more rein-forcers and with longer duration to maximize the efficacy of CM-based interventions, and on increasing the exportability of CM for smoking through advances in biochemical data collection and assessment techniques.