Behavioral Activation and HIV Risk Reduction for Men Who Have Sex With Men With Crystal Meth Abuse

1. To estimate, in a two-arm pilot randomized controlled trial (RCT), the effect size of the proposed intervention on reductions in sexual risk taking and crystal meth use. The primary outcome is the number of unprotected anal sex acts and a secondary outcome is reduction in crystal meth use episodes over the follow up period. 2. To explore the degree to which improvements in sexual risk taking are associated with the conceptual mediators of the effects of the intervention: reductions in crystal meth use and increases in pleasurable (but safe) activities, BAT skills, use of risk reduction skills, and reductions in depressed mood.