Abstract
Abstract The aim of this study was to investigate the combined use of two pathological personality tests, the Dimensional Clinical Personality Inventory (IDCP) and the Personality Inventory for DSM-5 (PID-5), within the context of incremental validity in order to verify the increasing severity of the constructs used. We generated item maps for sets of items based on three dimensions of IDCP and five facets of PID-5, selected according to the possibility of pairing between scales. The study included 642 individuals, predominantly women aged over 18, divided into three groups according to the dimensions and facets. There was an increase in the level of severity, typically related to the different personality disorders, in addition to the complementation between instruments, providing incremental validity. The use of item mapping helped us understand the increasing severity of the traits, and allowed the verification of the clinical relevance of the constructs.
Highlights
ABSTRACT –The aim of this study was to investigate the combined use of two pathological personality tests, the Dimensional Clinical Personality Inventory (IDCP) and the Personality Inventory for DSM-5 (PID-5), within the context of incremental validity in order to verify the increasing severity of the constructs used
We observed a discrepancy in the number of Inventário Dimensional Clínico da Personalidade (IDCP) and PID-5 items by established grouping, i.e., in some cases the number of items on one scale is expressively higher than on the other
We showed the application of the item map based on the mathematical model employed, since groups of items from two different instruments were applied in the tests
Summary
ABSTRACT –The aim of this study was to investigate the combined use of two pathological personality tests, the Dimensional Clinical Personality Inventory (IDCP) and the Personality Inventory for DSM-5 (PID-5), within the context of incremental validity in order to verify the increasing severity of the constructs used. RESUMO – O objetivo deste estudo foi investigar o uso conjunto de dois instrumentos que avaliam características patológicas da personalidade, o Inventário Dimensional Clínico da Personalidade (IDCP) e o Personality Inventory for DSM-5 (PID-5), dentro do paradigma da validade incremental, bem como verificar a evolução da severidade dos construtos utilizados. Among the tools available for personality assessment in Brazil, there are two instruments that assess characteristics of personality disorders, namely the Inventário Dimensional Clínico da Personalidade (Dimensional Clinical Personality Inventory; IDCP), developed in Brazil by Carvalho and Primi (2015) and the Personality Inventory for DSM-5 (PID5), developed in the United States by Krueger, Derringer, Markon, Watson, and Skodol (2012).
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