“…While we relied solely on parents' reports of their children, we believe this has provided us with reliable data, as evidenced by numerous studies demonstrating a high level of agreement between parental ratings of their children's behavior and the behaviors and feelings the children truly exhibit, especially in instances of disordered behavior (Cantwell, Lewinsohn, Rohde, & Seeley, 1997;Hartung, McCarthy, Milich, & Martin, 2005;Sourander & Piha, 1997).…”