Evolution of the Millon Clinical Multiaxial Inventory.

Dr. Theodore Millon (1928-2014) was a primary architect for the personality disorders in the DSM-III, a structure that has endured into the DSM-5. His 1969 book, Modern Psychopathology, created an elegant framework into which the well-known personality prototypes could be fitted and understood. His theoretical work soon led into the creation of several psychological inventories, most notably the Millon Clinical Multiaxial Inventory (MCMI). The MCMI, now in preparation for its 4th major edition, has been a very popular instrument among clinicians. This article explores the history of the MCMI's development from its origins, through 2 distinct theoretical phases, and to its current status as the MCMI-IV is finalized.