We aimed to review of the Eccentricity dimension of the Dimensional Clinical Personality Inventory (IDCP), through two steps.The first one focused on developing new items and the second on testing the psychometric properties in a sample of 225 subjects (70.1% females), aging between 18 and 66 years, mostly undergraduate students (58.9%). The subjects answered the IDCP, and the Brazilian versions of the NEO-PI-R, PID-5 and MIS. The first step resulted in 42 items, which 22 were new. The
ResumenDimensión Excentricidad del Inventario Dimensional Clínico de la Personalidad: Revisión y psicométricas propiedades. El estudio tuvo como objetivo revisar la dimensión Excentricidad del Inventario Dimensional Clínico de la Personalidad (IDCP), en dos pasos.Uno para el desarrollo de nuevos ítems y otro para probar las propiedades psicométricas en una muestra de 225 sujetos (70,1% mujeres), con edades entre 18 y 66 años, estudiantes universitarios en su mayoría (58,9%). Los sujetos respondieron el IDCP, y las versiones brasileñas del NEO-PI-R, PID-5 y MIS. El primer paso resultó en 42 ítems, los cuales 22 eran nuevos. El segundo, dio lugar a una mezcla compuesta de 18 ítems, agrupados en seis factores interpretables, Desapego interpersonal, Estilo excéntrico, Paranormalidad, Estilo persecutorio, Despersonalización y Inexpresividad emocional, con coeficientes de consistencia interna de 0,85 para el total, y entre 0,60 y 0,82 para los factores. Las correlaciones entre los instrumentos revelaron relaciones consistentes y esperadas. Los datos demuestran la idoneidad de la nueva dimensión Excentricidad del IDCP.Palabras clave: rasgos de personalidad; tests psicológicos; trastornos de la personalidad.
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.
A new approach to mental disorder taxonomy was recently proposed, the Hierarchical Taxonomy of Psychopathology (HiTOP). The aim of this study was to develop a specific version of the Dimensional Clinical Personality Inventory 2 (IDCP-2), a self-reported measure developed in Brazil for use in pathological personality traits assessment, focused on the assessment of traits related to BPD in accordance with the HiTOP model. In step 1 we developed new factors to cover all traits of BPD according to HiTOP. In step 2, data were collected from 207 adults from the community (N = 207; M age = 35.9). Participants completed the developed measure (IDCP Borderline Personality Disorder Scale; IDCP-BPD), and selected factors from IDCP-2, PID-5, FFBI and FFHI. Exploratory structural equation modeling (E-SEM) suggested a 3-factors solution for the grouping of the fifteen factors of the IDCP-BPD.Factors and total score reliability was good. Correlations between IDCP-BPD factors and external measures were coherent, corroborating our expectations. The bootstrap two-sample t-test comparing the healthy and pathological groups suggested good discrimination capacity of the IDCP-BPD factors, mainly the Fragility and Impotence feelings factors. Favorable evidence was found for the use of IDCP-BPD to BPD traits measurement. The new factors extend the coverage of IDCP-2 in measuring BPD symptoms. Correlations suggest that IDCP-BPD factors measure the traits considered as relevant according to HiTOP. Discriminant capacity of the factors also supports the use of the measure, although future studies must replicate this in samples composed of BPD patients. personality disorders, differential diagnosis, emotional instability, psychological assessment
The aim of this study was to develop the Adult Attention-Deficit/Hyperactivity Disorder Screening Inventory, a self-report instrument for assessing symptoms as well as to verify the internal structure of the instrument. Based on the proposed Diagnostic and Statistical Manual of Mental Disorders V Attention-Deficit/Hyperactivity Disorder diagnostic criteria, the Screening Inventory was developed and administered. The participants were 421 individuals divided into two groups, with and without Attention-Deficit/Hyperactivity Disorder diagnosis. The instrument items were analyzed and validated for content by a panel of expert judges. It was found that the instrument structure is composed of two factors, namely, Inattention and Hyperactivity/Impulsivity (Cronbach’s alpha 0.97 and 0.96, respectively). In general, the observed data provided validity evidence based on content and internal structure of the instrument, which complies with the latest edition of the Diagnostic and Statistical Manual of Mental Disorders, proving to be a favorable instrument for the investigation of Attention-Deficit/Hyperactivity Disorder symptoms in Adults.
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