Answers are grounded in this paper and cite their sources.
Bruce F. Pennington, Linda L. McCabe, Shelley D. Smith, Dianne L. Lefly, Myra O. Bookman, William J. Kimberling, Herbert A. Lubs, Spelling Errors in Adults with a Form of Familial Dyslexia, Child Development, Vol. 57, No. 4 (Aug., 1986), pp. 1001-1013
No takes yet. Share an insight, caveat, or question.
Pennington et al. (1986) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: