The indirect effects of self-regulation on the association of social support with increased protective drinking behavior and decreased alcohol problems in a predominantly Hispanic college student sample

Background: Research suggests that self-regulation, which refers to one's ability to manage a behavior, and social support are related to alcohol use. Other research suggests that social support may serve as a precursor to self-regulation and health-promoting behaviors. We examined whether self-regulation has an indirect effect on the association between social support and both protective drinking behaviors and alcohol problems.

Methods: A random sample of students at a Hispanic Serving Institution completed an online survey, which included sociodemographic questions, the Multidimensional Perceived Social Support Scale, the Short Self-Regulation Questionnaire, the Protective Behavioral Strategies (PBS) Scale, and the Rutgers Alcohol Problem Index. Undergraduate students (n = 192) who reported drinking in the last month were included in the analysis. A path analysis using Mplus8 was conducted to investigate the relationships among social support, self-regulation, PBS, and alcohol-related problems.

Results: The sample was mostly female (58.9) and of Hispanic ethnicity (89.6). Analyses showed that social support had a significant positive association with PBS and a significant negative association with alcohol-related problems. When self-regulation was added to the models, these associations were no longer significant, and self-regulation had a significant indirect effect on the relationship between social support and both PBS and alcohol-related problems.

Conclusions: The results of the current cross-sectional study suggest that a viable hypothesis in future longitudinal studies is that self-regulation is a mechanism by which social support increases PBS and reduces alcohol problems. Future research should assess longitudinally both the mediating effects of self-regulation between social support and drinking outcomes and potential moderators, such as ethnicity.