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Bennett A. Shaywitz, Theodore R. Holford, John M. Holahan, Jack M. Fletcher, Karla K. Stuebing, David J. Francis, Sally E. Shaywitz, A Matthew Effect for IQ but Not for Reading: Results from a Longitudinal Study, Reading Research Quarterly, Vol. 30, No. 4 (Oct. - Nov. - Dec., 1995), pp. 894-906
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Shaywitz et al. (1995) studied this question.
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