“For example, in the Connecticut study, each child was administered a test of intelligence and a reading test individually. Using this methodology, we found that about 20 percent of children are dyslexic. Contrast this with the approximately 4 percent of children currently diagnosed as dyslexic and it is obvious that schools are failing to diagnose the great majority of dyslexic students, children who could be helped.”
― Sally E. Shaywitz, Overcoming Dyslexia: A New and Complete Science-Based Program for Reading Problems at Any Level