The importance of self-efficacy in the moderating effects of social support on stressor–strain relationships

Abstract

Occupational stress research offers inconsistent findings on the moderating effects of social support on the stressor–strain relationship. This study contributes to the research literature by examining how social support's moderating effect is dependent on one's self-efficacy. Ninety-six US military police soldiers completed two surveys 3 months apart. The results showed that three out of four regression equations had significant three-way interactions. Organizational constraints×supervisor support×self-efficacy had statistically significant interactions in the prediction of job satisfaction and psychological well-being. Organizational constraints×co-worker support×self-efficacy had a significant interaction in the predicted of psychological well-being. These interactions explained between 5% and 10% of the variance in the dependent variables. Social support buffered the stressor–strain relationship when self-efficacy was high and reverse buffered the relationship when self-efficacy was low. These results indicate that interventions aimed at reducing strains by increasing social support should consider an individual's self-efficacy. Future research should consider incorporating content of communication to determine if high and low self-efficacy individuals receive or react differently to different types of communication content.

Keywords:

• Social support
• self-efficacy
• organizational constraints
• work-related stress
• stressor–strain relationships

The findings described in this manuscript were collected under WRAIR Research Protocol #931 entitled “Enhancing the well-being and readiness of soldiers and families defending the homeland.” This research protocol was funded by the Research Area Directorate for Military Operational Medicine, US Army Medical Research and Materiel Command in Fort Detrick, MD, USA.