title: International note: Confirmatory factor analysis and psychometric properties of the Youth Psychopathic Traits Inventory in a sample of Portuguese adolescents.
abstract: The aim of this paper was to test the factorial structure and evaluate the psychometric properties of the Youth Psychopathic Traits Inventory (YPI). The YPI is composed of 10 dimensions that further represent three hypothesized facets of the classical description of psychopathy: callousness, interpersonal manipulation and impulsiveness. A sample of 500 adolescents aged 12 to 18 (M = 14.87; SD = 1.67) from northern Portugal participated in this study. The results generally confirmed the factorial structure of the YPI in this sample, with some qualifications.
authors.affiliation: University of Trás-os-Montes and Alto Douro, Portugal. Electronic address: margaridas@utad.pt.
authors.forename: Margarida
authors.initials: M
authors.lastname: Simões
authors.affiliation: University of Trás-os-Montes and Alto Douro, Portugal.
authors.forename: José
authors.initials: J
authors.lastname: Lopes
authors.affiliation: University of Minho, Portugal.
authors.forename: Rui Abrunhosa
authors.initials: RA
authors.lastname: Gonçalves
mesh_terms: D000293:Adolescent; D000987:Antisocial Personality Disorder / Q000175:diagnosis / Q000523:psychology*; D002648:Child; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D011174:Portugal; D011569:Psychiatric Status Rating Scales / Q000592:standards; D011594:Psychometrics; D015203:Reproducibility of Results
keywords: Adolescence; Confirmatory factor analysis; Psychopathy