Pearson Assessment - Homepage
Call us on 0845 630 88 88
Calls cost 3p per minute plus your phone company's access charge begin_of_the_skype_highlighting   0845 630 88 88  FREE    end_of_the_skype_highlighting

Millon™ Clinical Multiaxial Inventory-III (MCMI-III™) - Frequently Asked Questions

When is it appropriate to use the MCMI-III test?

What are base rate scores?

What is the purpose of the Grossman facet scales?

How are the Grossman facet scale results reported?

How is the MCMI-III test different from the MCMI-II test?

When is it appropriate to use the MCMI-III test?
The MCMI-III test should be used for diagnostic screening or clinical assessment of adults who evidence problematic emotional and interpersonal symptoms or who are undergoing professional psychotherapy or a psychodiagnostic evaluation. It should not be used with nonclinical cases. Individuals under the age of 18 should be administered the Millon Adolescent Clinical Inventory (MACI™ test) or the Millon Pre-Adolescent Clinical Inventory (M-PACI™), depending on the individual’s age, rather than the MCMI-III test.

What are base rate scores?
Base rate scores are a kind of standardised score that differs from the standardized scores that are reported for most personality and clinical inventories. Instead of standardizing all scales in the inventory to the same mean and standard deviation (e.g., a mean of 50 and standard deviation of 10) in the inventory’s normative sample, base rate scores are scaled to reflect the differing prevalence rates of the characteristics measured by the inventory. Base rate scores are unique to the Millon inventories. See the MCMI-III manual for a more complete description of the rationale and implementation of base rate scores.

back to top

What is the purpose of the Grossman facet scales?
The facet scales help pinpoint the specific personality processes (e.g., self-image, interpersonal relations) that underlie overall elevations on the Clinical Personality Patterns and Severe Personality Pathology scales, thereby aiding in the interpretation of those scales. For each of the primary personality scales, three scales measuring “facets” specified by Millon’s theory as prominent structural or functional features of that personality pattern are reported. Thus, there are 42 total facet scales tied to the 14 primary personality scales.

How are the Grossman facet scale results reported?
The profile report includes a graph showing the most salient facet scale scores and a table showing all 42 facet scale scores. The interpretive report includes the graph, the table, and a section with interpretive text for the scales. Printing the facet scale results is optional for both the profile report and the interpretive report.

How is the MCMI-III test different from the MCMI-II test?

  • Ninety items were revised or replaced.
  • One new personality scale (Depressive) was added.
  • One new Clinical Syndrome scale (PTSD) was added.
  • New Noteworthy Responses sections were added for childhood abuse and eating disorders.
  • The Axis I scales, specifically Alcohol Dependence, were improved.
  • The item-weighting scheme was changed.
  • There are fewer items per scale and less item overlap among scales.

back to top


Key Information


Assess personality disorders and clinical syndromes


Dr Theodore Millon

Roger Davis

Seth Grossman

Theodore Millon

Carrie Millon

Seth Grossman

Publication Year


Age Range

18 years and older


Individual - 25 to 30 minutes

Qualification Code


£180.50 (Complete kit price from)
Bookmark with: What are these? |
What do you think?