Abstract
An attempt is made to establish criteria by which problem drivers can be identified when tested for personality traits and studied for biographical differences in age, marital status, self-concepts, and choice of automobile. Part 1 of the study indicates that high-violation and-or high-accident drivers have personality traits that differ significantly from those of other drivers; and that certain scales could, after further validation for the specific use, be valuable in making early identification of unsafe drivers. Part II of the study shows that driving records (accidents and violations) have a relationship to the biographical differences among drivers.