What the definition for behavior disorder of childhood?

According to the Ontario Ministry of Education, Behaviour Disorder is a "Learning disorder characterized by specific behaviour problems over such a period of time, and to such a marked degree, and of such a nature, as to adversely affect educational performance, and that may be accompanied by one or more of the following: a) An inability to build or to maintain interpersonal relationships; b) Excessive fears or anxieties; c) A tendency to compulsive reaction; d) An inability to learn that cannot be traced to intellectual, sensory, or other health factors, or any combination thereof."