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The Harm Reduction Self-Efficacy Scale (HRSES) was developed to measure an individual's level of self-efficacy to limit their substance use consistent with their own substance use goals. To date, the HRSES has been validated in one relatively small sample. Using a large college student sample, we tested whether the HRSES is interpreted similarly in individuals depending on their self-identified sociodemographic groups. Our measurement invariance analyses supported the validity of the HRSES.



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