Abstract
The Minnesota Multiphasic Personality Inventory-2 Restructured Form is a widely used measure of psychopathology and includes the Personality Psychopathology Five (PSY-5) scales, which measure dimensional maladaptive personality traits similar to those in the DSM-5 alternative model for personality disorder (PD) diagnosis. The current study evaluated the role of these dimensional personality psychopathology characteristics in a sample of 1,110 inpatients in a forensic psychiatric setting, where personality psychopathology plays a significant but understudied role. The authors examined the extent to which dimensional personality psychopathology characteristics (as measured by the PSY-5) were associated with borderline and antisocial PD diagnoses and institutional aggression. Results support the usefulness of measuring dimensional personality traits for understanding PD diagnoses, as well as incidents of institutional aggression. More specifically, the PSY-5 scales appear to measure the core features of borderline and antisocial PDs. This study supports the inclusion of dimensional personality assessment in understanding aggressive behavior in inpatient settings.
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