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What is An 8 year old student complains of lack of interest in studies for the last 6 months. He has frequent quarrels with his parents and has frequent headaches. The most appropriate clinical approach would be : and explain in detail?
Frequent quarrels with parents (quick temper / easily angered) can be seen both in :


Depression in children.
Oppositional defiant disorder.


However, Physical symptoms (e.g., headache) and lack of interest occur in depression in children (not in oppositional defiant disorder).