Conduct DisorderConduct Disorder is a repetitive and persistent pattern of behavior that violates societal norms or the basic rights of others (American Psychiatric Association, 1994), covering four symptom areas: (1) aggressive behavior that threatens or causes physical harm to other people or animals (e.g., bullies, threatens, or intimidates others;), (2) nonaggressive conduct that causes property loss or damage (e.g., fire setting), (3) deceitfulness or theft (e.g., breaking into someone’s house or car), and (4) serious violation of rules (e.g., truancy). To be diagnosed, at least 3 of 15 possible symptoms must have been displayed during the past 12 months. Childhood-onset Conduct Disorder is differentiated from adolescent-onset when at least one of the behavioral characteristics is evident before age 10.