Weisfogel, A. (2019, August 25). Cracking the code of dyslexia. Retrieved August 28, 2019.

Dyslexia has been misunderstood in the past, with some believing the condition was a vision problem. Researchers including Drs. Bennett and Sally Shaywitz of Yale University say dyslexia affects about 20% of people and is unrelated to intelligence, while Dr. Laura Cassidy, parent of a teen with dyslexia and founder of a school for students with dyslexia, tested inmates of a prison and found more than 50% of them have the condition.