Background: The Religious Surrender and Attendance Scale -3 (RSAS-3) is a very brief measure used to quantify religious commitment as a protective health factor.Methods: To provide evidence of criterion-related validity of the RSAS-3, 440 community members and undergraduate students completed a survey containing three religiosity measures: the RSAS-3, the Intrinsic/Extrinsic Orientation scale, and the Belief into Action scale (BIAC), and a measure of problematic substance use, Texas Christian University Drug Screen-5. It was hypothesized all religiosity measures would be positively interrelated, the measure of problematic use would be negatively related to all religiosity measures, and that the RSAS-3 would be strongly predictive of absence of problematic substance use. After data filtering and imputation, bivariate correlations were calculated to establish convergent validity.Results: All relationships were in the predicted directions. Specifically, BIAC had the strongest relationship with the RSAS-3, r (440) = .906, p < .001, followed by intrinsic religiosity, r (440) =.814, p < .001, and extrinsic religiosity, r (440) = .694, p < .001. The RSAS-3 was the strongest predictor of problematic use among the religiosity measures, r (440) = -0.230, p <.001. Criterion-related validity of the RSAS-3 was supported using logistic regression to explore intrinsic religiosity, extrinsic religiosity, BIAC, and RSAS-3 as predictors of the presence/absence of problematic substance use. The RSAS-3 was the only significant predictor (OR = .858 [95% CI .757 - .973], p = .017).Conclusion: All results provide further evidence for the validity of the RSAS-3 as a very brief measure of religious commitment useful in health settings.
Keywords: health; religious surrender; substance use.