This paper’s purpose consists in confirming the factorial structure, as well as, the evaluation of the psychometric properties of the "Youth Psychopathic Traits Inventory" (YPI), according to Confirmatory Factor Analysis procedure. 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 ¼ 14.87; SD ¼ 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.
Margarida Simões* and Rui Abrunhosa Gonçalves