In these lectures, we shall treat them as three separate disorders. ODD is not diagnosed in such cases. There is also a recognition of differences in externalising behaviours of boys and girls. Subtypes of CD and ODD are based on the age of onset, where children with earlier onset subtype have poorer prognosis. Characterised by hyperactivity.
Children are also impulsive .
They may call out frequently in class, and often are unable to wait for their turn in an activity. These children often are underachievers at school, tend to be disruptive and to have difficulty relating to peers. This form of the disorder can persist into adolescence and adulthood. Combined type A combination of both inattention and hyper activity. ADD is diagnosed usually when child is in Primary school.