Browsing by Author "Ray, James V."
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- Adaptation of the Basic Empathy Scale among a portuguese sample of incarcerated juvenile offendersPublication . Pechorro, Pedro Fernandes dos Santos; Ray, James V.; Salas-Wright, Christopher P.; Maroco, João; Gonçalves, Rui AbrunhosaThe main aim of the present study was to examine the psychometric properties of the Basic Empathy Scale (BES) and of its adapted short version among a forensic sample of incarcerated male juvenile offenders (N = 221). The Portuguese validations of the BES and its adapted short version demonstrated good psychometric properties, namely in terms of the two-factor structure, internal consistency, convergent validity, discriminant validity, and concurrent validity that generally justifies its use among this population. Statistically significant associations were found with callous– unemotional traits and social anxiety. Findings are discussed in terms of the use of the BES and its adapted short version with juvenile offenders.
- A brief measure of narcissism among female juvenile delinquents and community youths: The narcissistic personality inventory–13Publication . Pechorro, Pedro Fernandes dos Santos; Maroco, João; Ray, James V.; Gonçalves, Rui Abrunhosa; Nunes, Maria Cristina de Oliveira SalgadoResearch on narcissism has a long tradition, but there is limited knowledge regarding its application among female youth, especially for forensic samples of incarcerated female youth. Drawing on 377 female adolescents (103 selected from forensic settings and 274 selected from school settings) from Portugal, the current study is the first to examine simultaneously the psychometric properties of a brief version of the Narcissistic Personality Inventory (NPI-13) among females drawn from incarcerated and community settings. The results support the three-factor structure model of narcissism after the removal of one item due to its low factor loading. Internal consistency, convergent validity, and discriminant validity showed promising results. In terms of criterion-related validity, significant associations were found with criterion-related variables such as age of criminal onset, conduct disorder, crime severity, violent crimes, and alcohol and drug use. The findings provide support for use of the NPI-13 among female juveniles.
- Psychometric properties of the Barratt Impulsiveness Scale version 11 among a Portuguese sample of incarcerated juvenile offendersPublication . Pechorro, Pedro Fernandes dos Santos; Maroco, João; Ray, James V.; Gonçalves, Rui AbrunhosaThe aim of the present study was to examine the psychometric properties of the Barratt Impulsiveness Scale version 11 (BIS-11) among a forensic sample of incarcerated male juvenile offenders (N = 221). Principal Component Analysis with Promax rotation revealed the expected 6-factor structure, but Confirmatory Factor Analysis of the 6-factor first-order and the 3-factor second-order factorial structures did not present sufficiently good fits. Despite that, the Portuguese adaptation of the BIS-11 demonstrated generally acceptable psychometric properties in terms of internal consistency, mean inter-item correlation, convergent validity, discriminant validity, and concurrent validity that justifies its use among the youth forensic population. Statistically significant associations were found with age of crime onset, conduct disorder, crime seriousness, alcohol use and drug use.
- The reactive–proactive aggression questionnaire: validation among a Portuguese sample of incarcerated juvenile delinquentsPublication . Pechorro, Pedro Fernandes dos Santos; Ray, James V.; Raine, Adrian; Maroco, João; Gonçalves, Rui AbrunhosaThe aim of the present study was to examine the psychometric properties of the Reactive–Proactive Aggression Questionnaire (RPQ) among a forensic sample of incarcerated male juvenile offenders (N = 221). The Portuguese version of the RPQ demonstrated promising psychometric properties, namely, in terms of factor structure, internal consistency, convergent validity, discriminant validity, and concurrent validity that generally justifies its use among this population. Statistically significant associations were found with conduct disorder, age of criminal onset, age of first problem with the law, crime seriousness, physical violence use in committing crimes, alcohol use, cannabis use, cocaine/heroin use, and having unprotected sex. The findings provide additional support for the extension of the RPQ across different cultures, ethnic groups, and samples.
- Validation of the Inventory of Callous-Unemotional Traits among a portuguese sample of detained juvenile offendersPublication . Pechorro, Pedro Fernandes dos Santos; Ray, James V.; Barroso, Ricardo; Maroco, João; Gonçalves, Rui AbrunhosaThe main aim of the present study was to examine the psychometric properties of the Inventory of Callous-Unemotional Traits (ICU) among a sample of incarcerated male Portuguese juvenile offenders (N = 221). Based on this sample, the Portuguese version of the ICU demonstrated promising psychometric properties, namely, in terms of factor structure, internal consistency, convergent validity, discriminant validity, and concurrent validity that generally justifies its use among this population. Statistically significant associations were found with conduct disorder, age of criminal onset, crime seriousness, physical violence use in committing crimes, alcohol use, cannabis use, and cocaine/heroin use.
- Validation of the Youth Psychopathic Traits Inventory and Youth Psychopathic Traits Inventory – Short version among incarcerated juvenile delinquentsPublication . Pechorro, Pedro Fernandes dos Santos; Andershed, Henrik; Ray, James V.; Maroco, João; Gonçalves, Rui AbrunhosaThe aim of the present study was to examine the psychometric properties of the Youth Psychopathic Traits Inventory (YPI) and of the Youth Psychopathic Traits Inventory – Short version (YPI-S) among Portuguese juvenile delinquents within a forensic sample of 221 incarcerated males (ages 13–20 years). Confirmatory Factor Analysis supported the three-factor structure of the YPI and YPI-S, and the reliability of both instruments was good for the majority of subscales and factors. The YPI and YPI-S and their subscales showed good criterion, external, and divergent validity. That is, positive associations were found with a number of external criteria including Conduct Disorder, crime seriousness, and violent crimes. Total and subscale scores on both YPI versions were positively related to the Antisocial Process Screening Device, the Inventory of Callous-Unemotional Traits, and the Child and Adolescent Taxon Scale. Finally, both the YPI and YPI-S were mostly unrelated to the Social Anxiety Scale for Adolescents. Overall, the YPI-S presented less problems with reliability, but weaker relations to external correlates. These findings justify the use of the YPI and the YPI-S among incarcerated youths.