This study involves is a two-group repeated measures design. Within the NIDA stage model, it is a randomized, pilot trial with a matched-attention control condition. The investigators plan to examine outcomes associated with the intervention versus control condition among patients receiving outpatient addiction treatment services (intensive outpatient program or methadone maintenance program). The investigators will employ assessments at baseline, during therapy, post-therapy, and three-month follow-up. Eligible subjects will be randomly assigned to the study CBT therapy (plus addiction treatment-as-usual) or the matched attention control condition (individual addiction counseling [IAC] plus addiction treatment-as-usual), and all will be followed for the research assessments regardless of whether they drop out of treatment early (whenever possible).