“…The 10 subscales of the YPI have demonstrated a three-factor, higher-order structure composed of Grandiose/Manipulative, Callous/Unemotional, and Impulsive/Irresponsible factors (Andershed et al, 2002;Andershed, Hodgins, & Tengstrom, 2007;Declercq, Markey, Vandist, & Verhaeghe, 2009). The YPI has been significantly associated with other self-report psychopathy measures, as well as with the Psychopathy Checklist-Youth Version (PCL: YV, Forth, Kosson, & Hare, 2003), and with externalizing and antisocial behavior in non-referred, at-risk, and delinquent youth (Andershed et al, 2002;Andershed et al, 2007;Ansel, Barry, Gillen, & Herrington, 2015;Declercq et al, 2009;Ray et al, 2016;Skeem & Cauffman, 2003). The YPI has also shown evidence of construct validity in young adults (Campbell, Doucette, & French, 2009;Neumann & Pardini, 2014).…”