Development of the Dimensional Clinical Personality Inventory Antisocial Personality Disorder Scale based on the HiTOP

Abstract

We aimed to develop a version of the Dimensional Clinical Personality Inventory 2 (IDCP-2) according to the Hierarchical Taxonomy of Psychopathology (HiTOP) for the assessment of antisocial personality disorder traits (i.e., IDCP Antisocial Personality Disorder Scale; IDCP-ASPD), as well as verify its psychometric properties. We developed new factors to cover ASPD traits, and collect data with 206 adults from the community (Mage = 31.3; 77.8% women). Participants completed the IDCP-ASPD, factors from IDCP-2, and Personality Inventory for DSM-5 (PID-5). Exploratory structural equation modeling (E-SEM) suggested a 3 factors solution, grouping the 14 factors composing the IDCP-ASPD. Reliability indicators were good. Correlations between IDCP-ASPD and external measures corroborated expectations. The bootstrap two-sample t-test comparing non-clinical and psychiatric groups suggested good discrimination capacity of the IDCP-ASPD. Favorable evidence was found for the usability of the developed scale for ASPD traits measurement, although future studies must replicate the findings in samples composed by ASPD patients.