Adult marijuana users seeking treatment (N = 291) were randomly assigned to 3 treatment conditions: 1) a cognitive-behavioral relapse prevention support group (RPSG), 2) individualized assessment and advice group, and 3) delayed treatment control group. The purpose of this study was to investigate the role of self-efficacy in goal setting and treatment outcomes based on self-stated goals (abstinence or moderation) for marijuana use. Measures of marijuana use, treatment goal, and self-efficacy for achieving one's goal were used. Goal choice was shown to influence treatment outcome such that, participants were more likely to achieve outcomes consistent with their treatment goal. The findings suggest that self-efficacy for goal achievement is more strongly related to outcomes for those with abstinence treatment goals, but appears to exert some effect across both goal types. / Master of Science

Adult marijuana users seeking treatment (N = 291) were randomly assigned to 3 treatment conditions: 1) a cognitive-behavioral relapse prevention support group (RPSG), 2) individualized assessment and advice group, and 3) delayed treatment control group. The purpose of this study was to examine the relationship between psychological distress, self-efficacy, and marijuana use. Measures of marijuana use, psychological distress, situational self-efficacy, coping self-efficacy, temptation to use, and frequency of encountering situations were used. Only a portion of the hypotheses were supported. Psychologically distressed individuals had lower self-efficacy for psychologically distressing (PD) situations as opposed to non-psychologically distressing (NPD) situations. Participants had lower self-efficacy for NPD situations than PD situations. The RPSG condition did not have the hypothesized effect on self-efficacy for PD situations. / Master of Science

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