“…Shaffer, Towns, Schmidt, Fisher, and Zlotowitz (1974) investigated a sample of fatally injured male drivers and found that these individuals were on average seen as more belligerent, negative, verbally expansive, hyperactive, and displaying more psychopathology than comparable normative males. Several studies demonstrated that many psychological and social factors such as aggressiveness, depression, and social maladjustment were significantly related to traffic accidents (Cresswell & Groggatt, 1963; McFarland & Moore, 1957a,b,c; McGuire, 1956; Schuster & Guildford, 1964).…”