DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   EPI
       n 1: a self-report personality inventory based on Hans Eysenck's
            factor analysis of personality which assumes three basic
            factors (the two most important being extraversion to
            introversion and neuroticism) [syn: Eysenck Personality
    Inventory, EPI]