Common features of oppositional defiant disorder (ODD) include excessive, often persistent anger, frequent temper tantrums or angry outbursts, as well as disrespect of authority. Children and adolescents with ODD often purposely annoy others, blame others for their own mistakes, and are easily disrupted. Parents often observe more rigid and irritable behaviours than in siblings. In addition, these young people may appear resentful of others, and when someone does something they don’t like they prefer revenge over more sensitive solutions.
For a child or adolescent to qualify for a diagnosis of ODD, these behaviours must cause considerable distress for the family or interfere significantly with academic or social functioning. Interference might take the form of preventing the child or adolescent from learning at school or making friends, or placing him or her in harmful situations. These behaviours must also persist for at least six months.