The purpose of this study is to see how different forms of "Anger Management" compare in reducing anger and impulsive aggressive symptoms in people. "Anger Management" is a common form of "talk therapy" used to help people with anger problems. There are different types of "talk therapy" used to help people for anger problems and this study will compare two types of talk therapy in people with Intermittent Explosive Disorder (IED). IED is a disorder in which there are frequent and sudden outbursts of anger (yelling, throwing and breaking things, hitting people) that lead to problems with other people socially or at work.