Millon's Evolutionary Model of Personality Assessment: A Case for Categorical/Dimensional Prototypes

Abstract

Theodore Millon (1928–2014) was arguably one of the most influential figures in conceptualizing and detailing personality styles and disorders in the latter 20th and early 21st centuries. A prominent member of the Axis II Work Group of DSM–III, III–R, and IV, Millon continued refining his evolutionary model long after his active involvement with these committees, and remained focused on the future of personality assessment until his death in 2014. This article is an exploration of his latter works, critiques of recent DSM–5 developments, and commentary on the usefulness of his deductive methodology as it continues to apply to the study, classification, and clinical application of personality assessment.