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Psychometric Properties and Prognostic Usefulness of the Youth Psychopathic Traits Inventory (YPI) as a Component of a Clinical Protocol for Detained Youth: A Multiethnic Examination
Department of Child and Adolescent Psychiatry, Leiden University Medical Center, Academic Workplace Forensic Care for Youth, Netherlands; Center for Criminological and Psychosocial Research, Örebro University, Örebro, Sweden.
Department of Psychology, University of Cyprus, Nicosia, Cyprus.
Örebro University, School of Law, Psychology and Social Work. (Center for Criminological and Psychosocial Research)ORCID iD: 0000-0002-8163-6558
Department of Child and Adolescent Psychiatry, Leiden University Medical Center, Academic Workplace Forensic Care for Youth, Leiden, Netherlands.
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2017 (English)In: Psychological Assessment, ISSN 1040-3590, E-ISSN 1939-134X, Vol. 29, no 6, 740-753 p.Article in journal (Refereed) Published
Abstract [en]

Prior studies have shown that the Youth Psychopathic Traits Inventory (YPI) holds promise as a self-report tool for assessing psychopathic traits in detained adolescents. However, these studies have been conducted in a research context where anonymity and confidentiality are provided. Few studies have examined the usefulness of the YPI in clinical settings. To address this research gap, the present study examined data from 1,559 detained boys who completed the YPI as part of a clinical protocol. Official criminal records were available for a subsample (n = 848), allowing us to test the prognostic usefulness of the YPI. Results of confirmatory factor analyses, overall, support the proposed 3-factor structure, though model fit indices were not as good in Dutch boys compared to boys from other ethnic groups. Measurement invariance tests showed that the YPI scores are manifested in the same way across all 4 ethnic groups and suggest that means scores between the 4 ethnic groups are comparable. The YPI scores were internally consistent, and correlations with external variables, including aggression and conduct problems, support the convergent validity of the interpretation of YPI scores. Finally, results demonstrated that YPI scores were not significantly positively related to future criminality. In conclusion, this study suggests that the YPI may hold promise as a self-report tool for assessing psychopathic traits in detained male adolescents during a clinical protocol. However, the finding that the YPI did not predict future offending suggests that this tool should not yet be used for risk assessment purposes in forensic settings.

Place, publisher, year, edition, pages
American Psychological Association (APA), 2017. Vol. 29, no 6, 740-753 p.
Keyword [en]
Psychopathic Traits Inventory, validity, recidivism, criminal justice, self-report
National Category
Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:oru:diva-58955DOI: 10.1037/pas0000437ISI: 000403502900014PubMedID: 28594217Scopus ID: 2-s2.0-85020472908OAI: oai:DiVA.org:oru-58955DiVA: diva2:1134330
Available from: 2017-08-18 Created: 2017-08-18 Last updated: 2017-10-10Bibliographically approved

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