Abstract
The primary aim of the present study was to examine the psychometric properties and measurement invariance of the Inventory of Callous-Unemotional Traits (ICU) self-report and its short version (ICU-12) among a mixed-sex normative sample of 782 Portuguese youth (M = 15.87 years; SD = 1.72). Confirmatory factor analysis revealed that the three-factor structure of the ICU obtained the best fit after the removal of two items, and the two-factor structure of the ICU-12 obtained the best fit after the removal of one item. Cross-sex measurement invariance was demonstrated for both versions of the inventory. The 22-item version of the ICU and its 11-item short form (ICU-SF) demonstrated generally adequate psychometric properties of internal consistency, convergent validity, discriminant validity, and criterion-related validity (e.g., with conduct disorder symptoms). In terms of known-groups validity, males scored significantly higher than females. Results suggest that the use of the ICU and ICU-SF among Portuguese-speaking youth is psychometrically justified.
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Acknowledgements
This study was supported by the Portuguese Foundation for Science and Technology (FCT; Grant SFRH/BPD/86666/2012) with co-financing of the European Social Fund (POPH/FSE), and the PT2020 Partnership Agreement (UID/PSI/01662/2013).
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Pechorro, P., Braga, T., Hawes, S.W. et al. The Portuguese Version of the Inventory of Callous-Unemotional Traits Self-Report and its Short Form Among a Normative Sample of Community Youths. Child Psychiatry Hum Dev 50, 245–256 (2019). https://doi.org/10.1007/s10578-018-0835-3
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DOI: https://doi.org/10.1007/s10578-018-0835-3