“…Several clinical rating scales designed to assess psychopathy have been used in taxometric research, including various versions of the Psychopathology Checklist (PCL) and its revisions, the PCL-Revised and the PCL-Antisocial Process Screening Device (Frick and Hare, 2001;Hare 1993), antisocial subscales of the Personality Assessment Interview (Morey, 2007), and the Levenson Self-Report Psychopathology Scale (Levenson et al, 1995). Within this tradition, eight studies conducted among adult jail and/or prison inmates (Dana, 1990;Edens et al, 2006;Guay et al, 2007;Marcus et al, 2004;Walters, 2009;Walters et al, 2007aWalters et al, , 2007bWalters et al, , 2007cWalters et al, , 2008 and two studies (Edens et al, 2011;Murrie et al, 2007) conducted among adolescents in juvenile correctional facilities consistently yielded evidence of dimensionality of psychopathy.…”