Predicting driving anger from trait aggression and self-control.

Undergraduates (N=115) completed the Propensity for Angry Driving Scale, Driving Anger Scale, and measures of trait aggression and self-control. Aggression and self-control correlated significantly with scores on the two scales, and Aggression subscale scores explained significant unique variance in both, but the predicated interaction of aggression and self-control was not significant. The Propensity for Angry Driving Scale is recommended to measure self-reported aggressive driving, and the Driving Anger Scale for assessment of driving-related anger.