Oppositional defiant disorder (ODD) is a type of behavior disorder. It is mostly diagnosed in childhood. Children with ODD are uncooperative, defiant, and hostile toward peers, parents, teachers, and other authority figures. They are more troubling to others than they are to themselves. it is normal for children to have trouble focusing and behaving at one time or another. However, children with ADHD do not just grow out of these behaviors. The symptoms continue, can be severe, and can cause difficulty at school, at home, or with friends. This theory suggests that the problems start when children are toddlers. Children and teens with ODD may have had trouble learning to become independent from a parent or other main person to whom they were emotionally attached. Their behavior may be normal developmental issues that are lasting beyond the toddler years. This theory suggests that the negative symptoms of ODD are learned attitudes. They mirror the effects of negative reinforcement methods used by parents and others in power. The use of negative reinforcement increases the child’s ODD behaviors. That’s because these behaviors allow the child to get what he or she wants: attention and reaction from parents or others.