Millon's Multiaxial Clinical Millon Inventory (MCMI-IV) - Interpretation

Base Rate (TB) Scores and Cut-Off Points

Unlike other tests that use percentiles, the Millon uses Base Rate (TB) scores to reflect the prevalence of disorders in the clinical population.

Interpretation is governed by specific cut points: a TB between 60 and 74 suggests the presence of traits or a personality style; a TB between 75 and 84 indicates the presence of a defined personality pattern or clinical syndrome (disorder); and a TB of 85 or higher signals prominent, chronic pathology of impending severity.

Grossman Facets and Significant Responses

To refine the diagnosis, the test breaks down general patterns into Grossman Facets, which are specific subscales (e.g., for the Avoidant pattern, a facet might be "alienated self-image").

In addition, the correction system alerts for Significant Responses (critical items related to child abuse, suicide, eating disorders, etc.).

For these critical responses, a low affirmation percentage (even 20% in cases such as maltreatment) may be sufficient to consider them clinically valid and worthy of exploration in the interview.

Summary

Unlike percentiles, it uses Base Rate scores to reflect clinical prevalence. Scores between 75 and 84 indicate definite disorder, while 85 or more indicate impending severe pathology.