Lucas De Francisco Carvalho

University of San Francisco · Departamento de Psicologia / Psychology Department

Objective: This study aimed to examine the discriminative capacity of Dimensional Clinical Personality Inventory 2 (IDCP-2) factors in identifying individuals with elevated Borderline Personality Disorder (BPD) traits within a Brazilian community sample while proposing an optimal cutoff score for distinguishing high BPD trait levels. Methods: Th...

Objective This study explores the NodeIdentifyR algorithm (NIRA) as a novel network analysis method for examining Antisocial Personality Disorder (ASPD) traits. Methods Using a sample of 2230 Brazilian adults (aged 18–73 years) who responded to ASPD‐related factors of the Personality Inventory for DSM‐5 (PID‐5), we applied NIRA to an ASPD network...

The study aimed to investigate which school and student variables predict bullying and school violence. The participants included 104,010 children from 3,537 schools. They completed the SENNA 2.0, a scale developed to measure five domains of socialemotional skills. The results suggest that biological sex, age, Portuguese proficiency, Mathematics pr...

Personality Disorders (PD) are linked to several highly detrimental outcomes and are highly prevalent in developed and developing countries. PD prevalence estimates may exceed 20% in the general population. Specifically, screening measures typically found percentages ranging from 40 to 54%. Although studies in a few developed countries were publish...

With the advent of the new diagnostic model for personality disorders in the 11th revision of the International Classification of Diseases (ICD-11), researchers and practitioners in World Health Organization signatory countries are urged to implement it. This study aims to develop a brief, reliable, and valid scale for assessing maladaptive persona...

We aimed to adapt the Expanded Levenson Self-Report Psychopathy (E-LSRP) to the Brazilian context, evaluate its internal structure and construct validity. We also aimed to expand the psychopathy nomological network by providing information about E-LSRP factors' associations with a Brazilian cultural phenomenon known as Brazilian Jeitinho. Our sampl...

The Inventory of Depression and Anxiety Symptoms–Expanded version (IDAS-II) is one of the few tools designed to assess internalizing symptoms based on dimensional models. We conducted two studies, the first testing internal validity aspects of the IDAS-II and the second testing the external validity of the scales. In the first study we adapted the...

Aim of the study We aimed to investigate the moderation effect of sex and age on the relationship between personality and adherence to COVID-19 containment measures. Subject or material and methods Participants were 4,538 Brazilian adults, ranging from 18 to 79 years old (M= 31.07, DP= 11.37), which responded to the BFI-2-S and questions regarding...

Exercise addiction is a dysfunctional behavior that includes excess and loss of control over physical activity or training, accompanied by negative consequences. The aim of the present study was to cross-culturally adapt the “Exercise Dependence Scale” for Brazilian dancers. Six judges evaluated the items and 338 dancers (Age=15.52 years; ±3.55) re...

In the COVID‐19 context, traits associated with antisociality can decrease concern and awareness about the potential harmfulness of the virus. This study investigated associations of pathological traits of antisocial personality disorder (ASPD) with behaviours and beliefs linked to COVID‐19 containment measures. The sample consisted of 2230 Brazili...

Unfolding theory maps individuals and stimuli into a common latent space, reflecting preferences through proximity. Unlike traditional psychometric methods, unfolding models are complex and computationally intensive, leading to their underuse despite their potential for nuanced insights. This study presents a tutorial on unidimensional unfolding, u...

In the current study, we used latent profile analysis to investigate the Dimensional Clinical Personality Inventory 2 capacity to discriminate psychopathy traits in a sample of adults. Participants were 628 adults from the general population recruited by convenience. Our latent profile analysis recovered two groups: Psychopathic Tendencies and Empa...

The two broad aims of this study were to (a) investigate how the three traits of the triarchic model-boldness, meanness, and disinhibition-relate to compliance with public health measures, as well as to internalizing and externalizing psychopathology, during a public health crisis, and (b) test for associations between psychopathology and complianc...

Objective: We investigated relationships between the triarchic model of psychopathy, coping styles, and externalizing and internalizing symptoms, and verified the mediating effect of coping styles. Methods: Participants were 957 adults responding to the Triarchic Psychopathy Measure, Inventory of depression and anxiety symptoms expanded version,...

Objective: Previous publications have focused on a leading pop culture phenomenon, Star Wars, to teach several issues in psychiatry, which can make understanding challenging themes easier. This article delves into matters of differential diagnoses regarding two psychiatric disorders. Methods: We examine and compare the symptoms and specificities of...

Objective: The Inventory of Interpersonal Problems-Personality Disorders (IIP-PD-47) has a controversial factor structure, as some studies have provided support for 5 correlated factors, and others have suggested the existence of a general second-order dimension. One approach of data modelling that reconciles multidimensionality and the existence...

We developed and validated a self-report scale for screening pathological traits of dependent personality disorder (DPD) from the Hierarchical Taxonomy of psychopathology (HiTOP) perspective. The sample was 693 adults who answered the new scale, the Dimensional Clinical Personality Inventory DPD (IDCP-DPD), the PID-5, the FFDI, and the FFBI. The ID...

We aimed to refine the previously proposed antisocial subscale for the Dimensional Clinical Personality Inventory 2 (IDCP-ASPD). The sample involved 628 Brazilian adults between 18 and 81 years old. We administered the revised ASPD subscale (IDCP-ASPD-R), the Affective and Cognitive Measure of Empathy (ACME), the Crime and Analogous Behavior Scale...

Personality traits play a role in prosocial behavior in relation to containment measures intended to tackle the COVID-19 pandemic. Empirical findings indicated that individuals high in socially aversive traits such as callousness are less compliant with containment measures. This study aimed to add cross-cultural data on the relationship between an...

Objective The present study aims to establish a clinical cut-off for the Grandiosity dimension, using item-level evaluation procedures. Methods Participants were 5,387 adults, including outpatients diagnosed with narcissistic personality disorder (NPD), outpatients diagnosed with other personality disorders, and adults from the community. We admin...

The authors investigated the latent structure of schizotypal personality features using taxometric analysis in a large sample of individuals from clinical and nonclinical populations. A total of 7,072 community adults and 270 psychiatric patients participated in the study by responding to the eccentricity, distrust, and isolation scales from the Di...

This study aimed to investigate the discriminative capacity of IDCP-2 factors to identify people with suicide risk. Moreover, we are providing a suicide indicator for IDCP-2. Participated 346 people aged between 18 and 72 years who responded to ASIQ, IDCP-2, and PID-5. We divided participants into three groups: low-risk group, moderate-risk, and hi...

Aim of the study This study aimed to verify the relationship between personality traits and commitment to vaccination against COVID-19. Subject or material and methods The sample consisted of 595 Brazilian adults aged 18-72 years, who answered the Big Five Inventory 2 Short (BFI-2-S) and a COVID-19 Vaccine Questionnaire. Results Higher scores in...

This study aimed to investigate the discriminative capacity of iDCp-2 factors to identify people with suicide risk. Moreover, we are providing a suicide indicator for iDCp-2. Participated 346 people aged between 18 and 72 years who responded to aSiq , iDCp-2, and piD-5. We divided participants into three groups: low-risk group, moderate-risk, and h...

This study investigated the associations of multidimensional perfectionism with positive affect and negative outcomes (affect and Obsessive–Compulsive Personality Disorder [OCPD] pathological traits) through network analysis. The sample consisted of 604 Brazilian adults aged 18–74 years. The network analysis showed that perfectionistic concerns (PC...

This study aimed to test the predictive capacity of pathological traits of personality and career adaptability on four constructs that compose the well-being at work: work engagement, job satisfaction, burnout, and workaholism. A total of 204 Brazilian working adults (M age = 34.02, SD = 10.39) participated in the study, which responded to scales m...

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 facto...

Aim of the study This study aimed to operationalize a version of the Dimensional Clinical Personality Inventory 2 (IDCP-2) for the screening of typical traits of the Paranoid personality disorder (PPD) from the perspective of the HiTOP, as well as investigate its internal and external validity. Subject or material and methods We selected IDCP-2 fa...

Despite the prevalence of personality disorders (PD) and their association with several harmful health outcomes, previous reports found a low number of studies on PDs conducted in Brazil. We conducted a narrative review to investigate the current state of research in Brazil focusing on PDs. The search was performed in BVS-Psi, PePSIC, and Google Sc...

We aimed to investigate relationships between Facebook problematic use (Facebook PU) and pathological traits of personality, by a systematic review. The literature search was proceeded based on a search strategy including the keywords “Facebook”, “problematic use” and “personality”. We found a total of 236 publications and selected 21 papers for fu...

This study aimed to investigate the relationship between depressive symptoms and pathological personality functioning (PPF) and specific indicators of pathological personality patterns. The participants were 446 adults from the general population. Part of the sample (n = 237) answered scales evaluating the PPF (Dimensional Clinical Personality Inve...

The internal structure is investigated in mental health measures, exploring or confirming the association of stimuli composing the test and whether this structure is consistent with expectation. Our focus is on the internal structure of the Dimensional Clinical Personality Inventory 2 (idcp-2), a self-report test for pathological traits measurement...

This study aimed to investigate the relationship between depressive symptoms and pathological personality functioning (PPF) and specific indicators of pathological personality patterns. The participants were 446 adults from the general population. Part of the sample (n = 237) answered scales evaluating the PPF (Dimensional Clinical Personality Inve...

This study investigated relationships between career adaptability and personality and pathological traits using the network analysis approach. We administered CAAS, BFI-2-S, and IDCP-2 to 630 working adults. We observed positive associations between personality and career adaptability and negative associations between pathological traits and career...

Schizotypal personality disorder (STPD) is characterized by difficulties in intimate relationships, social and interpersonal deficits, and perceptual distortions. Encompassing this personality disorder and other mental conditions, the Hierarchical taxonomy of psychopathology (HiTOP) is an evidence‐based, dimensional model covering pathological trai...

Objectives This study investigated the Eccentricity scale's clinical functioning from the Dimensional Clinical Personality Inventory 2 (IDCP-2). Additionally, we sought to establish a cutoff for a screening scenario to be taken as the first indicator of Eccentricity characteristics’ possible clinically relevant functioning. Method In total, 2167 a...

In March 2020, the World Health Organization (WHO) had declared the coronavirus disease 2019 (COVID-19) pandemic. Three weeks after WHO’s declaration, almost 900,000 cases of COVID-19 were confirmed, with more than 43,000 deaths worldwide. Containment measures were recommended, such as social distancing and hand hygiene. Although they are known to...

This study aimed to verify Dimensional Clinical Personality Inventory 2 (IDCP-2) factors to identify ASPD traits, proposing an ASPD subscale for IDCP-2 (IDCP-ASPD). The sample consisted of 460 Brazilian adults, where 367 were a community sample (aged 18–63 years), and 93 prison inmates (aged 18–62 years). The participants answered IDCP-2 factors, P...

Objective The Inventory of Interpersonal Problems–Personality Disorders (IIP-PD-47) has a controversial factor structure, as some studies have provided support for 5 correlated factors, and others have suggested the existence of a general second-order dimension. One approach of data modelling that reconciles multidimensionality and the existence of...

INTRODUCTION: People with halitosis suffer various consequences, incurring social, professional, and affective limitations that impair their confidence, spontaneity, and self-esteem. However, the existing treatment protocols focus on treating halitosis alone, rather than its psychological consequences. OBJECTIVE: The objective of this study is to p...

Aim: The study aimed to investigate the impacts of the COVID-19 pandemic on Brazilian healthcare workers who work directly with patients diagnosed with COVID-19. Material and methods: 634 individuals divided into three groups. Non-health workers (n = 372) with a mean age of 36.6 years (SD = 9.14) and 85.5% female; Health Workers (n = 94) with a mea...

This letter to the editor seeks to comprehend the impact of the educational level as a measure of cognitive abilities and its probabilities tô containment measures against COVID-19 pandemic

The Inventory of Problems-29 (IOP-29) is a recently introduced free-standing symptom validity test (SVT) with a rapidly growing evidence base. Its classification accuracy compares favorably with that of the widely utilized Structured Inventory of Malingered Symptomology (SIMS), and it provides incremental validity when used in combination with othe...

The study aimed to verify the discriminant capacity of the factors of the Clinical Dimensional Personality Inventory 2 (IDCP-2) in the identification of people with substance dependence, as well as to compare this capacity with another instrument that evaluates pathological traits, the Personality Inventory for DSM-5 (PID-5). The sample was compose...

Objective The present study aims to establish a clinical cut-off for the Grandiosity dimension, using item-level evaluation procedures. Methods Participants were 5,387 adults, including outpatients diagnosed with narcissistic personality disorder (NPD), outpatients diagnosed with other personality disorders, and adults from the community. We admin...

This study aimed to investigate the diagnostic accuracy of the Baptista Depression Scale adult and screening versions (EBADEP-A and EBADEP-screening) for discrimination of people with a major depressive episode (MDE) or major depressive disorder (MDD) and to compare discriminative capacities. Participants were 187 people, 52 patients, and 135 non-c...

A new dimensional-based framework was proposed, the Hierarchical Taxonomy of Psychopathology (HiTOP). This study aimed to develop a specific version of the Dimensional Clinical Personality Inventory 2 (IDCP-2), focused on the assessment of the schizoid personality disorder (SZPD) according to the HiTOP. In stage 1, we developed a new factor to cove...

Personality disorders (PDs) are characterized by impairments in the self and interpersonal relationships. People diagnosed with PD present distress in several areas of life. The prevalence of these disorders is 13% in Western countries and around 7% in Brazil. Despite the adverse outcomes related to PDs and its prevalence, these disorders tend to b...

Introduction Research suggests that religiosity domains are associated with mental health constructs. Some studies have focused on the relationship between religiosity and personality disorders. Objective To investigate the relationship between religiosity domains and pathological traits of the borderline (BPD) and schizotypal (SZPD) personality d...

This study investigated the relationships between antisocial traits and compliance with COVID-19 containment measures. The sample consisted of 1,578 Brazilian adults aged 18-73 years who answered facets from the PID-5, the Affective resonance factor of the ACME, and a questionnaire about compliance with containment measures. Latent profile analyses...

Aim of the study Our study investigates associations between social isolation and indicators of general mental health, well-being, depression, anxiety, loneliness, and stress in Brazilian adults. Variables to measure aspects to ease the isolation impact (ease-isolating variables) were also included. Subject or material and methods 539 Brazilian ad...

Estudos prévios apontam que níveis mais severos da personalidade (isto é, funcionamentos patológicos da personalidade – FPP) se associam com maior presença de sintomas depressivos, baixa qualidade de vida e esperança. Entretanto, não foram observados estudos utilizando conjuntamente essas três variáveis em um modelo focado no FPP. O objetivo deste...

This study aimed to develop a specific version of the Dimensional Clinical Personality Inventory 2 (IDCP-2), focused on the assessment of avoidant personality disorder (AvPD) according to the Hierarchical Taxonomy of Psychopathology (HiTOP). First, we developed the IDCP-Av, composed of one new factor and four factors from the IDCP-2. A total of 436...

Introduction: In December 2019, an outbreak of the novel coronavirus, the coronavirus disease 2019 COVID-19, probably occurred in Wuhan, China. By March 2020, the World Health Organization (WHO) had declared a pandemic. Containment measures were recommended, such as social distancing and hand hygiene. In this study, we start from the hypothesis tha...

The EsAvI is a multidimensional scale developed in Brazil to assess impulsivity through four factors, named lack of concentration and persistence, cognitive control, future planning and audacity and temerity. The main purpose was verifying the quality of psychometric properties of this scale considering an item-level analysis, the item response the...

The aim of the study was to verify the predictive capacity of the indicator of pathological personality (IPP) regarding work engagement, job satisfaction, and burnout. A total of 228 Brazilian workers answered the IDCP-SV, EEGT, EST, and MBI-HSS. Structural Equation Modeling was used to predict work engagement, job satisfaction, and burnout using t...

The literature investigating the process underlying the answers given in self-report tests for personality assessments is scarce. This study aimed to develop a protocol to investigate the response process of people who responded to a self-report instrument for personality assessment. It also sought evidence of content validity for this protocol. Th...

Dancers experience daily pain that impacts their health, but the pain is mediated by coping with pain. We elaborated the Scale of Coping with Pain for Dancers (COPAIN-Dancer) based on the Motivational Theory of Coping with 12 categories of coping. This study presents the validity of the COPAIN-Dancer. The content analysis conducted judges reduced 1...

Introduction The purpose of this study was to investigate the relationship between defence mechanisms and pathological personality traits. Material and methods We analysed 320 participants aged from 18 to 64 years (70.6% women, 87.5% university students) who completed the Dimensional Clinical Personality Inventory (IDCP) and the Defence Style Ques...

Evidences suggest a relationship between narcissistic personality disorder (NPD) traits and passive data from social network sites, mainly, number of friends. A possible hypothesis for this relationship is the presence of the attention seeking trait, which is also a core component of the histrionic personality disorder (HPD). The aim of this resear...

Abstract The aim of this study was to develop a version of the Dimensional Clinical Personality Inventory 2 (IDCP-2) focusing on the Histrionic Personality Disorder (HPD) traits according to the Hierarchical Taxonomy of Psychopathology (HiTOP) model, and to verify its psychometric properties. The method was divided into two stages. The first was re...

Background and objectives This study aimed to establish a clinical cut-off for the self-report Conscientiousness dimension of the Dimensional Clinical Personality Inventory 2 (IDCP-2) for people with Obsessive–compulsive personality disorder (OCPD) diagnosis. The following hypotheses were raised: (1) scale should be more reliable for assessing more...

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...

Aiming to contribute on the investigation of discriminative features of the borderline personality disorder (BPD) and bipolar disorder (BD), we investigated the capacity of specifics pathological traits in discriminating BPD from BD patients. Participants were 258 adults: 30 BPD outpatients, 28 BD outpatients, and 200 non-patients. Through repeated...

Introduction: Borderline personality disorder (BPD) is one of the most widely studied personality disorders (PDs). It recurrently shows traits of emotional lability, anxiety, separation insecurity, depressiveness, impulsiveness, risk exposure, and hostility, mainly affecting the domains of negative affectivity and antagonism. Objectives: To inve...

Objective: The Hierarchical Taxonomy of Psychopathology (HiTOP) posits that psychopathology is hierarchically structured. For personality disorder (PD) traits, there are five spectra: internalizing, thought disorder, disinhibited externalizing, antagonistic externalizing, and detachment. Empirical findings suggest a sixth group, compulsivity. In th...

Resumo A identificação dos transtornos da personalidade como entidades categóricas ou contínuas ainda está sob investigação na psiquiatria e psicologia. No que diz respeito aos transtornos de personalidade antissocial (TPA) e borderline (TPB), análises taxométricas têm revelado resultados controversos, logo, inconclusivos. Partindo disso, este estu...

A qualidade de vida consiste em um construto multidimensional composto por dimensões cognitivas, emocionais e comportamentais, de socialização e percepção de saúde. O objetivo deste estudo foi verificar as evidências de validade do Questionário de Qualidade de Vida sobre Atletas (QQVA) aplicando-o em bailarinos adolescentes (QQVA-B). Foram avaliado...

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...