Fifty children, ages 6-12 with Intermittent Explosive Disorder will be randomly assigned to eight weeks of double blind Intuniv plus Parent Management Training or placebo Parent Management Training. Titrated over four weeks to a maximum dose of 4 mgs or .09-.12 mgs/kg/day, they will be maintained on that dose for four weeks. At the end of treatment, the treating physician will break the blind and offer open label treatment for eight weeks.