Millon Clinical Multiaxial Inventory - II

Purpose: Designed as a clinical measure to assist with psychiatric screening and with clinical diagnosis.

Population: Adult clinical populations.

Score: 10 clinical personality pattern scores.

Time: (25) minutes.

Author: Theodore Millon.

Publisher: National Computer Systems, Inc.

Description: Based on Millonís theory of personality and psychopathology, the brief Millon Clinical Multiaxial Inventory-II (MCMI-II) instrument provides a measure of 22 personality disorders and clinical syndromes for adults undergoing psychological or psychiatric assessment or treatment. Specifically designed to help assess both Axis I and Axis 11 disorders, the MCMI-II instrument can assist clinicians in psychiatric diagnosis, developing a treatment approach that takes into account the patientís personality style and coping behavior, and guiding treatment decisions based on the patientís personality pattern.

Scoring: The MCMI-II consists of 10 clinical personality pattern scales, 3 severe personality pathology scales, 6 clinical syndrome scales, 3 modifier indices, 1 validity index.

Reliability: The reliability of the MCMI II generally has been sound, with the Axis II scales showing the highest stability as predicted by Millon. Normal subjects also had noticeably higher stability coefficients than clinical subjects. Millon also tested the stability of high point and double-high-point configurations. He reports that high point codes are fairly stable over a month, with nearly two thirds of 168 subjects achieving the same scale high point. For double-high-point configurations, 25% achieve the same high scores with another 19% achieving the same two scales but in reverse order. Based on part of his normative sample, Millon reports quite high internal consistencies. The average of 22 clinical scales is .89, and the range is from .81 to .95.

Validity: Because of extensive item overlap, we cannot be sure of the factor structure of this instrument. But there are also overlaps based on the overlap of the constructs; that is, the personality disorders are by no means distinct entities.

Norms: Norms for the MCMI-II instrument are based on a national sample of 1,292 male and female clinical subjects representing a variety of DSM-III and DSM-III-R diagnoses. The subjects included inpatients and outpatients in clinics, hospitals, and private practices. The MCMI-II manual describes the distribution of gender, age, marital status, religion, and other factors within the sample.

Suggested Uses: The MCMI-II is used primarily in clinical settings with individuals who require mental health services for emotional, social, or interpersonal difficulties.