New study, to be published in the January 1, 2010 issue of the journal Psychological Science, illustrates the gap between intelligence and reading difficulty in children with Dyslexia. Sally E. Shaywitz, M.D., professor at the Yale School of Medicine's Department of Pediatrics, and co-director of the newly formed Yale Center for Dyslexia and Creativity, used data from the Connecticut Longitudinal Study, an ongoing 12-year study of cognitive and behavioral development in a sample of 445 Connecticut schoolchildren. Shaywitz and her team tested each child in reading every year and tested for IQ every other year. The researchers found that in typical readers, IQ and reading not only track together, but also influence each other over time. But in children with Dyslexia, IQ and reading are not linked over time and do not influence one another. This explains why a child with Dyslexia can be both bright and not read well. These findings provide evidence to support the concept that Dyslexia is an unexpected difficulty with reading in children who otherwise have the intelligence to read.

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Intelligence and Reading Ability