Even when spoken to directly, the child may not pay attention and will be unable to provide feedback when asked. Hyperactive children frequently get into minor difficulties in school. The relationship between these two is more complicated. As many as two-thirds stop their destructive behavior by the time they reach adulthood. Conduct Disorder may be a precondition for APD but does not predict it.
Age of onset seems to be paramount.
In short, the relationship between APD and conduct disorders rests on an array of complicating factors. These researchers view psychopathy as an important clinical construct in the evaluation of adolescent offenders. Donald R. Lynam seems to have done the most extensive work with this population. He showed that psychopathy has much in common with ODD, CD, and hyperactivity. He believes there is a neurological deficit that manifests as a lack of behavioral restraint, such as with hyperactive and impulsive children.