Three types of conduct disorder behavior are described: group, solitary aggressive, and undifferentiated. Behaviors exhibited by the solitary aggressive youth who operates alone are characterized by violence, acting out, and refusing direction. This behavior type is regarded as particularly problematic for teachers. (JW)

Reviews trends in numbers of students excluded from school in England because of behavior problems, illustrating that permanent exclusions are rising. Proposes that causes for exclusion are psychosocial problems, family and social problems, stretched educational resources, and a cultural response to alienated and alienating behavior. Suggests…