Theodore Millon (/mɪˈlɒn/)[1] (August 18, 1928 – January 29, 2014) was an American psychologist known for his work on personality disorders.
Millon was born in Brooklyn in 1928, the only child of immigrant Jewish parents from Lithuania and Poland.
[3]: 309 He studied psychology, physics, and philosophy as an undergraduate at the City College of New York and went on to receive his PhD from the University of Connecticut in 1954, with a dissertation on "the authoritarian personality.
"[7] Millon has written numerous popular works on personality, developed diagnostic questionnaire tools such as the Millon Clinical Multiaxial Inventory, and contributed to the development of earlier versions of the Diagnostic and Statistical Manual of Mental Disorders.
Among other diagnoses, Millon advocated for an expanded version of passive aggressive personality disorder, which he termed 'negativistic' personality disorder and argued could be diagnosed by criteria such as "expresses envy and resentment toward those apparently more fortunate" and "claims to be luckless, ill-starred, and jinxed in life; personal content is more a matter of whining and grumbling than of feeling forlorn and despairing" (APA, 1991, R17).