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Reading Disability

  1. Margaret W. Riddle

Published Online: 30 JAN 2010

DOI: 10.1002/9780470479216.corpsy0778

Corsini Encyclopedia of Psychology

Corsini Encyclopedia of Psychology

How to Cite

Riddle, M. W. 2010. Reading Disability. Corsini Encyclopedia of Psychology. 1–3.

Author Information

  1. University of Denver

Publication History

  1. Published Online: 30 JAN 2010


Reading disability was first described at the end of the nineteenth century, when British physician W. Pringle Morgan (Morgan, 1896) described the case of a bright 14-year-old boy who was unable to read any but the simplest words, in spite of clearly being intelligent and great efforts having been made to teach him. Reports of similar cases followed, describing a condition with the major elements of what currently is recognized today as reading disability, or dyslexia, which fundamentally refers to unexpected underachievement in reading that is not primarily the result of sensory impairment, intellectual disability, or lack of adequate instruction.


  • dyslexia;
  • reading disability;
  • assessment;
  • learning disabilities