Recovering the HEXACO Personality Factors - and Psychoticism - From Variable Sets Assessing Normal and Abnormal Personality

We examined the joint factor structure of the 30 facets of the NEO Personality Inventory - Revised (NEO-PI-R; or the NEO-PI-3) with either (a) the 25 facets of the Personality Inventory for DSM-5 (PID-5) or (b) the 15 facets of the Schedule for Nonadaptive and Adaptive Personality (SNAP) plus several dissociation scales, using self-reports from participant samples of previous research. The NEO-PI-R[3]/PID-5 variable set produced seven factors that represented the HEXACO factor space plus a "psychoticism" dimension. The NEO-PI-R/SNAP/dissociation variable set produced a similar set of seven factors. The results indicate that even some questionnaire variable sets not constructed to measure the HEXACO factors can recover those personality dimensions. Researchers interested in integrating the domains of normal and abnormal personality are advised to adopt a model consisting of six HEXACO-like dimensions plus a dimension of psychotic tendency.