The Effects of Stress Beliefs on Daily Affective Stress Responses.

BACKGROUND

Negative beliefs about the effects of stress have been associated with poorer health and increased mortality. However, evidence on the psychological mechanisms linking stress beliefs to health is scarce, especially regarding real-life stress.

PURPOSE

The aim of the current study was to investigate the effects of stress beliefs on affect in the daily stress process in a population prone to health-impairing effects of stress: university students.

METHODS

Using daily diaries, 98 university students reported on daily perceived social and work-related stressors as well as positive and negative affect for 10 consecutive days. Stress beliefs, depressive and anxiety symptoms, neuroticism, and demographic variables were assessed prior to the daily diary phase.

RESULTS

Hierarchical linear models revealed a significant cross-level interaction between negative stress beliefs and the association of daily social stressors with negative affect (B = 0.24; 99% confidence interval [CI] = 0.08-0.41, p < .001). When experiencing social stress, participants who held high negative stress beliefs had higher daily negative affect (simple slope = 4.09; p < .001); however, for participants who held low negative stress beliefs the association between daily social stress and daily negative affect was considerably smaller (simple slope = 2.12; p < .001). Moreover, individuals believing stress to be controllable showed higher positive affect throughout the 10-day daily diary phase.

CONCLUSIONS

Negative stress beliefs were found to moderate the affective response to daily real-life stressors. Given the established relationship between affect and health, this study provides initial evidence of psychological mechanisms linking stress beliefs to health.