Dyslexia
It was not until the National Institutes of Health began to research in 1980 that a more accurate definition of dyslexia was developed. According to the International Dyslexia Association, dyslexia is defined as "a neurologically based, often familially inherited, disorder that interferes with the acquisition and processing language." (Multimedia Schools 8, no6, 2001). Dyslexia affects at least one out of every five children in the United States. It is the most common and prevalent of all known learning disabilities. Dyslexia is "characterized by difficulties in single word d…