Have you ever heard of the Millon Clinical Multiaxial Inventory-Fourth Edition?  This article will describe what this particular inventory is and provide readers with the particular scales used on this inventory.

What Is The Millon Clinical Multiaxial Inventory-Fourth Edition?

According to, the following can be stated about the Millon Clinical Multiaxial Iventory-Fourth Edition:

The Millon Clinical Multiaxial Inventory – Fourth Edition (MCMI-IV) is the most recent edition of the Millon Clinical Multiaxial Inventory. The MCMI is a psychological assessment tool intended to provide information on personality traits and psychopathology, including specific psychiatric disorders outlined in the DSM-5. It is intended for adults (18 and over) with at least a 5th grade reading level who are currently seeking mental health services.[1] The MCMI was developed and standardized specifically on clinical populations (i.e. patients in clinical settings or people with existing mental health problems), and the authors are very specific that it should not be used with the general population or adolescents.[2] However, there is evidence base that shows that it may still retain validity on non-clinical populations, and so psychologists will sometimes administer the test to members of the general population, with caution. The concepts involved in the questions and their presentation make it unsuitable for those with below average intelligence or reading ability.

What Scales Are Used On This Inventory?

According to, the following scales are used on this inventory:

The MCMI-IV consists of a total of twenty-five scales: Fifteen Clinical Personality Patterns scales: Schizoid, Avoidant, Melancholic, Dependent, Histrionic, Turbulent (NEW in the MCMI-IV), Narcissistic, Antisocial, Sadistic, Compulsive, Negativistic, and Masochistic; three Severe Personality Pathology scales: Schizotypal, Borderline, and Paranoid; seven Clinical Syndrome Scales: Anxiety, Somatoform, Bipolar Spectrum, Persistent Depression, Alcohol Dependence, Drug Dependence, and Posttraumatic Stress Disorder; three Severe Clinical Syndrome scales: Schizophrenic Spectrum, Major Depression, and Delusional Disorder; three Modifying Indices, an Inconsistency scale, and a Validity scale. The personality scales parallel the personality disorders of the DSM-5, as refined by theory. They are grouped into two levels of severity, the Clinical Personality Patterns scales and Severe Personality Scales. The clinical symptomology scales represent syndromal conditions frequently seen in clinical settings. They are also grouped into two levels of severity, the Clinical Syndromes scales and the Severe Syndrome Scales. The three Modifying Indices – Disclosure, Desirability, and Debasement – assess response tendencies which are connected with particular personality patterns or syndromal conditions.


To end this particular article, information on what the Millon Clinical Multiaxial Inventory-Fourth Edition is as well as information on the scales has been provided in this article.