Review of the Isolation dimension of the Dimensional Clinical Personality Inventory

Abstract

This study aimed to review IDCP's (Dimensional Clinical Personality Inventory) Isolation dimension. Its method was divided into two Parts, the first of which focused on developing new items based on literature, and the second one tested the new set of items' psychometric properties. IDCP, the Revised NEO Personality Inventory (NEO-PI-R), and Personality Inventory for DSM-5 (PID-5) were applied in a population of 213 subjects aged between 18 and 69 years old (M= 25.56, SD= 8.70), most of which were women (74.3%). Part I resulted in a total of 39 items, including 28 new ones. Part II resulted in a total of 18 items in four interpretable factors based on internal structure analysis. Items were: Individualism, Social Isolation, Intimacy Avoidance and Emotional Apathy. These items presented total internal consistency coefficient of.88 and individual factor internal consistency coefficient higher than.75. Dimension correlations to NEO-PI-R and PID-5 showed coherent and expected numbers. Data show this new IDCP Isolation dimension to be acceptable.