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The Youth Psychopathic Traits Inventory: Measurement Invariance and Psychometric Properties among Portuguese Youths
School of Psychology, University of Minho, Campus de Gualtar, Braga, Portugal.
Research Unit of the Cognitive-Behavioral Research and Intervention Center, Faculty of Psychology and Education Sciences, University of Coimbra, Rua do Colégio Novo, Coimbra, Portugal.
Örebro University, School of Law, Psychology and Social Work.ORCID iD: 0000-0002-8163-6558
Research Unit of the Cognitive-Behavioral Research and Intervention Center, Faculty of Psychology and Education Sciences, University of Coimbra, Rua do Colégio Novo, Coimbra, Portugal.
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2016 (English)In: International Journal of Environmental Research and Public Health, ISSN 1661-7827, E-ISSN 1660-4601, Vol. 13, no 9, article id 852Article in journal (Refereed) Published
Abstract [en]

The aim of the present study was to examine the psychometric properties of the Youth Psychopathic Traits Inventory (YPI) among a mixed-gender sample of 782 Portuguese youth (M = 15.87 years; SD = 1.72), in a school context. Confirmatory factor analysis revealed the expected three-factor first-order structure. Cross-gender measurement invariance and cross-sample measurement invariance using a forensic sample of institutionalized males were also confirmed. The Portuguese version of the YPI demonstrated generally adequate psychometric properties of internal consistency, mean inter-item correlation, convergent validity, discriminant validity, and criterion-related validity of statistically significant associations with conduct disorder symptoms, alcohol abuse, drug use, and unprotected sex. In terms of known-groups validity, males scored higher than females, and males from the school sample scored lower than institutionalized males. The use of the YPI among the Portuguese male and female youth population is psychometrically justified, and it can be a useful measure to identify adolescents with high levels of psychopathic traits.

Place, publisher, year, edition, pages
Basel, Switzerland: MDPI , 2016. Vol. 13, no 9, article id 852
Keywords [en]
Adolescents, assessment, psychopathic traits, validation
National Category
Psychiatry
Research subject
Psychiatry
Identifiers
URN: urn:nbn:se:oru:diva-51905DOI: 10.3390/ijerph13090852ISI: 000384674600016PubMedID: 27571095Scopus ID: 2-s2.0-84984861214OAI: oai:DiVA.org:oru-51905DiVA, id: diva2:956993
Note

Funding Agencies:

Portuguese Foundation for Science and Technology (FCT) SFRH/BPD/86666/2012  SFRH/BD/99795/2014

European Social Fund (POPH/FSE)

Portuguese Ministry of Education and Science (MEC)

FEDER UID/PSI/01662/2013

Available from: 2016-08-31 Created: 2016-08-31 Last updated: 2017-11-21Bibliographically approved

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Andershed, Henrik

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