Disruptive behavior disorders and related difficulties (e.g.,
aggression, defiance, noncompliance) are among the most
prevalent types of psychiatric problems affecting children and adolescents
(Comer et al. 2013). In an epidemiological study conducted
in 2009, the median 12-month prevalence of conduct
disorder or oppositional defiant disorder was 6% (Merikangas et al.
2009), and several studies reported disruptive behaviors to be
among the most common reasons youth were referred to mental
healthcare (e.g., Egger and Angold 2006; Zisser and Eyberg 2010).