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Behavioural indicates 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: ​

1. an inability to build or to maintain interpersonal relationships; ​
2. excessive fears or anxieties; ​
3. a tendency to compulsive reaction; ​
4. an inability to learn that cannot be traced to intellectual, sensory, or other health factors, or any combination thereof. ​