Exploring the impact of personality on performance: How time-on-task moderates the mediation by self-efficacy

Despite the widely acknowledged impact of dispositional traits on performance, little is known about how personality affects performance. We address this gap by investigating the relationships between the Big Five personality traits, self-efficacy, and academic performance in a moderated mediation model using time-on-task as the moderating variable. Results indicate that self-efficacy partially mediates the conscientiousness–performance relationship and that time-on-task moderates the mediating effect of self-efficacy. Time-on-task moderates the indirect effect of conscientiousness on course performance through self-efficacy such that the indirect effect is not significant at low levels of time-on-task, but becomes significant and stronger at higher levels of time-on-task.