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ABSTRACT
The present study examined the psychometric properties of a brief measure of the Triarchic model of psychopathy based on the Youth Psychopathic Traits Inventory (YPI-Tri-S) among a forensic sample of detained female youth offenders (M = 16.41 years; SD = 1.19 years) from Portugal. Results supported the expected three-factor structure and cross-gender measurement invariance. The YPI-Tri-S showed good psychometric properties in terms of factor structure, internal consistency, convergent validity, discriminant validity, and criterion-related validity. Findings suggest that the YPI-Tri-S is a valid and reliable measure of the Triarchic model of psychopathy, which can be used to assess female juvenile offenders.
Acknowledgments
We wish to thank the following Portuguese juvenile detention centers: Bela Vista, Navarro de Paiva, and Santa Clara
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Notes on contributors
Pedro Pechorro
Pedro Pechorro is a doctoral researcher at the Faculty of Psychology and Education Sciences at the University of Coimbra and is a member of the PsyAssessmentLab at the University of Coimbra. His research interests include juvenile delinquency, psychopathy, developmental criminology, and psychometrics.
Mário R. Simões
Mário R. Simões is a Full Professor at Faculty of Psychology and Educational Sciences at the University of Coimbra, Director of the PsyAssessmentLab and Coordinator of the Doctoral Program in Neuropsychology at the University of Coimbra. His research interests include psychological and neuropsychological assessment, adaptation and validation of tests, neuroscience, and forensic psychology.
Isabel Alberto
Isabel Alberto is an Assistant Professor at the Faculty of Psychology and Educational Sciences at the University of Coimbra and is a member of the PsyAssessmentLab at the University of Coimbra. Her research interests include psychological assessment, clinical practice, forensic psychology, child custody, and child sexual abuse.
James V. Ray
James V. Ray is an Assistant Professor in the Department of Criminal Justice at the University of Central Florida. His research interests include juvenile delinquency and juvenile justice, personality and offending, psychopathy, and developmental criminology.