Reading disorder is a learning disorder that involves significant impairment of reading accuracy, speed, or comprehension to the extent that the impairment interferes with academic achievement or activities of daily life. People with reading disorder perform reading tasks well below the level one would expect on the basis of their general intelligence, educational opportunities, and physical health. Reading disorder is most commonly called dyslexia. Dyslexia, however, usually includes deficits in spelling and writing as well as reading.
Reading disorder is a learning disorder characterized by a significant disparity between an individual's general intelligence and his or her reading skills. Learning disorders, formerly called academic skills disorders, are disorders that account for difficulty learning and poor academic performance when low performance cannot be attributed to mental retardation, low intelligence, lack of learning opportunities, or such specific physical problems as vision or hearing deficits. Common learning disabilities include reading disorder (often called dyslexia), mathematics disorder, disorder of written expression, and some language processing disorders.
Reading disorder can cause severe problems in reading, and consequently in academic work, even in people with normal intelligence, educational opportunities, motivation to learn to read, and emotional self-control. Reading disorder is different from slowness in learning or mental retardation. In reading disorder, there is a significant gap between the expected level of performance and actual achievement. Difficulties in reading can occur on many levels, and reading disorder may have several causes that manifest in different ways. Common problems in people with reading disorder include:
slow reading speed
poor comprehension when reading material either aloud or silently
omission of words while reading
reversal of words or letters while reading
difficulty decoding syllables or single words and associating them with specific sounds (phonics)
limited sight word vocabulary
Tish Davidson A.M., The Gale Group Inc., Gale, Detroit,