Date of Award

August 2024

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Psychology

First Advisor

Alan R. King

Abstract

This study aimed to explore and identify factors from two common personality measures, the Personality Inventory for the DSM-5 (PID-5) and Millon Clinical Multiaxial Inventory-IV (MCMI-IV), to aid in the prediction of lifetime physical violence. Contemporary violence risk assessments center around structured professional judgment, which often includes risk management factors. The MCMI-IV was developed to provide insight into an individual’s motivations, needs, and behaviors based on their personality type. Thus, the MCMI-IV was thought to have the potential to provide unique insight into treatment protocols for violence reduction and prevention. Based on previous research and theory, four facet and two domain scales from the PID-5, and four scales from the MCMI-IV, were selected and hypothesized to be predictors of an individual’s membership to a group of physically violent participants. Results indicated greater PID-5 Callousness, Hostility, Antagonism, and Disinhibition were predictors of one’s lifetime physical violence history. The MCMI-IV Sadistic scale also predicted a history of physical violence. When the two measures were combined, increased PID-5 Callousness, PID-5 Antagonism, and MCMI-IV Sadistic scores remained as significant predictors of physical violence. These results provide insight into how the PID-5 and MCMI-IV may reveal propensity for physical violence and assist in the prevention of violence. Moreover, the MCMI-IV lends itself to the future development of treatment for violence reduction and prevention.

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