Article
An examination of the impact of attention-deficit hyperactivity disorder on IQ: a large controlled family-based analysis.
Canadian journal of psychiatry. Revue canadienne de psychiatrie - 1 Oct 2012
Biederman Joseph, Fried Ronna, Petty Carter, Mahoney Laura, Faraone Stephen V
Abstract excerpt
OBJECTIVE: Although children with attention-deficit hyperactivity disorder (ADHD) have, on average, lower intelligence quotient (IQ) scores than control subjects, the reasons for these deficits remain unknown. Because IQ is highly familial, we investigated whether children with ADHD have a decrement in IQ from expectations based on parental IQ. METHOD: Subjects were 276 children with ADHD and 239 control subjects...
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