Is the discrepancy criterion for defining developmental disorders valid?

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Is the discrepancy criterion for defining developmental disorders valid?

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ژورنال

عنوان ژورنال: Journal of Child Psychology and Psychiatry

سال: 2004

ISSN: 0021-9630,1469-7610

DOI: 10.1111/j.1469-7610.2004.t01-1-00290.x