Perceptual Span of Poor Readers
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Abstract
A model is described attributing narrow perceptual spans of poor readers to abnormally slow phonological coding speed. In a test of the model with elementary-age school boys, (1) poor readers were slower than average readers on a digit naming task; (2) perceptual span for random digits was impaired for poor readers; (3) a linear relation was found between perceptual span and naming speed; and (4) within the limits of reliability, perceptual span and naming speed accounted for the same portion of reading ability variance. Discrepant results are also presented, and possible modifications of the model are discussed.