Twelve sessions of spiritual self schema counseling, adapted to target target medication adherence and substance use.

Eight sessions of education with content designed to mirror the information covered in the intervention condition.

The Spiritual Self Schema therapy (3S+) intervention will consist of a series of 12 one hour-long sessions delivered individually to participants over a four-month period. The 3S+ approach combines cognitive and behavioral therapy techniques with elements of non-theistic Buddhist philosophy to increase motivation for treatment adherence, alcohol and/or substance use reduction or abstinence and the prevention or reduction of HIV risk behaviors. 3S+ draws from self-regulation theory, self-schema theory, and self-discrepancy theory to assist participants in defining and perceiving their addict self, when their addict self is active, and its resulting negative affect state. 3S+ remediates the "addict" schema by proposing the construction of an alternate and competing schema: the "spiritual self." This spiritual self schema is compatible with HIV self-care, alcohol and drug use reduction or abstinence, adherence to treatment, and a compassionate life.

Participants in the intervention condition will report greater reductions in viral load, and greater increases in CD4 counts and self-reported adherence than those in the education comparison at the end of the intervention period (4 months). Those in the intervention condition will also maintain greater reductions in viral load, and greater increases in CD4 counts and self-reported adherence than those in the education comparison condition at the three follow-up assessments (4, 8, and 12 months).

Participants in the intervention condition will report greater reductions in self-reported days of substance use and severity of dependence than those in the education comparison at at the end of the intervention period (4 months). Those in the intervention condition will also maintain greater reductions in self-reported days of substance use than those in the education comparison condition at the three follow-up assessments (4, 8, and 12 months).

Participants in the intervention condition will report greater increases in mental health measures (e.g, depression, anxiety) and quality of life measures (e.g., life satisfaction, loneliness, perceived stress).