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Psychometric Properties and Measurement Invariance of the Youth Psychopathic Traits Inventory - Short Version among Portuguese Youth
School of Psychology, University of Minho, Campus de Gualtar, Braga, Portugal; Faculty of Psychology and Education Sciences, University of Coimbra, Rua do Colégio Novo, Coimbra, Portugal.
Research Unit of the Cognitive-Behavioral Research and Intervention Center, Faculty of Psychology and Education.
Research Unit of the Cognitive-Behavioral Research and Intervention Center, Faculty of Psychology and Education.
School of Psychology, University of Minho, Campus de Gualtar, Braga, Portugal.
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2017 (English)In: Journal of Psychopathology and Behavioral Assessment, ISSN 0882-2689, E-ISSN 1573-3505, Vol. 39, no 3, p. 486-497Article in journal (Refereed) Published
Abstract [en]

This study aimed to examine the psychometric properties of the Youth Psychopathic Traits Inventory - Short version (YPI-S) among a mixed-gender sample of 782 Portuguese youth (M = 15.87 years; SD = 1.72) collected in a school context. Exploratory and confirmatory factor analysis offered support for the expected 3-factor structure. Partial cross-gender measurement invariance and cross-sample measurement invariance of the YPI-S using a forensic sample of institutionalized males was established. The Portuguese version of the YPI-S showed adequate psychometric properties in terms of internal consistency, mean inter-item correlation, corrected item-total correlation, convergent validity, and discriminant validity. In support for criterion-related validity, the YPI-S also showed statistically significant associations with self-reported conduct disorder symptoms, alcohol abuse, and drug use. In terms of known-groups validity, males from the school sample scored lower than males from the forensic sample and higher than females from the school sample. The YPI-S seems to be a valuable brief and psychometrically reliable and valid self-report measure, which can be used to assess psychopathic traits in diverse samples of youth.

Place, publisher, year, edition, pages
Springer, 2017. Vol. 39, no 3, p. 486-497
Keywords [en]
Assessment, Measurement invariance, Youth psychopathic traits inventory - short, Validation
National Category
Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:oru:diva-60595DOI: 10.1007/s10862-017-9597-7ISI: 000407851500009Scopus ID: 2-s2.0-85015651544OAI: oai:DiVA.org:oru-60595DiVA, id: diva2:1138444
Note

Funding Agencies:

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

European Social Fund (POPH/FSE)  

Portuguese Ministry of Education and Science, and FEDER  PT2020  UID/PSI/01662/2013 

Available from: 2017-09-05 Created: 2017-09-05 Last updated: 2017-09-05Bibliographically approved

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Andershed, Henrik

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