Oppositional Defiant Disorder, a manifestation of Conduct Disorder, is characterized by a recurrent pattern of negativistic, defiant, disobedient and hostile behavior towards authority figures that seriously interferes with the youngster's day to day functioning. All children are oppositional from time to time, and oppositional behavior is often a normal part of development for two-to-three year olds and early adolescents. However, a diagnosis of Oppositional Defiant Disorder is considered when the behavior is so frequent and consistent that it stands out when compared with other children of the same age and developmental level and when it affects the child's social, family, and academic life.