“…This was in addition to the most severe CP and highest self-reported delinquency. Overall, researchers using diverse analytical techniques on different research groups have linked CU traits to antisocial behavior and related maladaptive outcomes among samples of foster care youths (Vaughn, DeLisi, Beaver, & Wright, 2009a; Vaughn, Litschge, DeLisi, Beaver, & McMillen, 2008), clinic-referred samples of male children and adolescents (Burke, Loeber, & Lahey, 2007), community samples of high school students (Jolliffe & Farrington, 2006), community samples of high-risk youths (Pardini, Obradović, & Loeber, 2006), and correctional samples of institutionalized delinquents (Caputo, Frick, & Brodsky, 1999; Pardini, Lochman, & Frick, 2003; Vaughn & DeLisi, 2008; Vaughn, DeLisi, Beaver, Wright, & Howard, 2007). …”