Age and vengeance as predictors of mild driver aggression.

The present study examined the influence of driver age and vengeance on mild aggression among drivers with at least 5 years experience. Mild aggression decreased with age among low vengeance drivers and changed little across age groups among moderately vengeful drivers. However, mild driver aggression actually increased with age among highly vengeful drivers. Results are interpreted in terms of the aggressive nature of an enduring vengeful attitude.