“…Further, in other institutional settings where personality disorder evaluations and violence risk assessments are common, women represent approximately 40% (civil hospitals) and 10% (forensic psychiatric hospitals) of the population. A growing literature suggests that female aggression among people with serious mental disorders (Hodgins, Mednick, Brennan, Schulsinger, & Engberg, 1996;Nicholls, Brink, Webster, & Martin, manuscript under review;Nicholls, Ogloff, & Douglas, 2004;Skeem et al, 2005;Stueve & Link, 1998;Swanson, Holzer, Ganju, & Jono, 1990) and intellectually impaired individuals (Crocker et al, in press;Hodgins, 1992) rivals, and sometimes surpasses, the prevalence rates and severity of aggression among their male counterparts. In the family violence field, removal of the ''cloak of secrecy'' (Steinmetz & Lucca, 1988, p. 233) reveals that men's and women's rates of perpetrating intimate partner abuse are roughly equal (Archer, 2000;Dutton & Nicholls, 2005;Nicholls & Dutton, 2001;Straus, 1999), despite contrary evidence derived from criminal databases and victim surveys.…”