Abstract
Minnesota Multiphasic Personality Inventory (MMPI) data were analyzed from two groups of aviators: U.S. Army helicopter pilots being screened for acceptance into U.S. Army Special Operations and helicopter piIots partici- pating in a variety of research studies at the U.S. Army Aeromedical Research Laboratory. Using analysis of variance procedures, it was found that the two groups differed in terms of their scores on some validity scales and several clinical scales. Using discriminant analysis, observed differences in both test-taking attitude (K scores) and Masculinity-Femininity (Mf scores) classi- fied subjects into Special Operations applicants or more conventional aviators with an accuracy ranging from 66% (for the entire sample) to 76% (for the age-matched groups on which the discriminant function was based).