Factor structure of the MCMI-III

Area of Science:

• Psychology
• Clinical Psychology
• Psychometrics

Background:

• The Millon Clinical Multiaxial Inventory (MCMI) is a widely used psychological assessment tool.
• Previous versions (MCMI and MCMI-II) have undergone factor analysis across diverse populations.
• The MCMI-III factor structure among African American substance abusers remained unexamined.

Purpose of the Study:

• To conduct the first factor analysis of the Millon Clinical Multiaxial Inventory-III (MCMI-III).
• To assess the factor structure of the MCMI-III specifically within a population of African American inpatient substance abusers.
• To compare the MCMI-III factor structure in this population with findings from previous MCMI and MCMI-II studies.

Main Methods:

• Factor analysis was performed on data from 444 African American inpatient substance abusers.
• The Millon Clinical Multiaxial Inventory-III (MCMI-III) was administered to participants.
• Statistical methods were employed to identify the underlying factor structure of the MCMI-III.

Main Results:

• Three primary factors emerged from the analysis: General Maladjustment, Paranoid Behavior/Thinking With Detached Emotionality, and Antisocial Acting Out.
• The identified factor structure was found to be largely consistent with previous factor analytic studies of the MCMI and MCMI-II.
• This invariance suggests stability in the MCMI-III's underlying structure across different populations.

Conclusions:

• The factor structure of the Millon Clinical Multiaxial Inventory-III (MCMI-III) is robust and consistent, even in a specific population like African American substance abusers.
• The observed factor invariance lends credibility to the revised MCMI-III.
• These findings encourage further research into the psychometric properties and clinical utility of the MCMI-III.