“…Only four reported studies (Caldwell, O'Hara, Caldwell, Stephens, & Krueger, 1993;Geist & Boyd, 1980;Grice & Katz, 2006;Picano, 1991) examined the personality traits of Army rotary-wing aviators. Geist and Boyd (1980), using the Minnesota Multiphasic Personality Inventory (MMPI), found that aviators report more pathology than non-aviators, with higher scores in hypochondriasis, depression, psychasthenia, social introversion, and hysteria.…”