FFMPD scales: Comparisons with the FFM, PID-5, and CAT-PD-SF

Area of Science:

• Psychological assessment
• Personality psychology
• Psychopathology

Background:

• The Five Factor Model Personality Disorder (FFMPD) scales assess maladaptive traits within the Five Factor Model (FFM) framework.
• Existing FFMPD research often focuses on single inventories, limiting comprehensive analysis.

Purpose of the Study:

• To examine the convergent, discriminant, and structural relationships of 36 FFMPD scales with the FFM.
• To compare the structural relationships of FFMPD scales with the FFM against the Personality Inventory for DSM-5 (PID-5) and CAT-PD-SF.

Main Methods:

• Analysis of 36 FFMPD scales across all 8 FFMPD inventories.
• Assessment of convergent, discriminant, and structural validity concerning the FFM.
• Comparative analysis with PID-5 and CAT-PD-SF scale structures.

Main Results:

• Support for an FFM structure was found, with agreeableness defining one factor and antagonism a separate factor.
• Similarities and differences between FFMPD, PID-5, and CAT-PD-SF scales were identified.
• The study provides a broader examination of FFMPD scales within the FFM framework.

Conclusions:

• The FFMPD scales demonstrate a structure consistent with the FFM, though with nuanced factor definitions.
• Comparative analysis highlights the unique contributions and overlaps of different personality disorder assessment tools.
• This research supports the utility of FFMPD scales for understanding personality disorders through the FFM lens.