Dyslexia affects a person's ability to spell, read, write, or even speak. It's considered the most common learning disability in children. The exact cause of dyslexia is not fully understood; however, it is thought that dyslexia can be related to factors that affect brain development and/or hereditary factors. Symptoms of dyslexia include failure to attain the language skills of writing, reading, and spelling despite conventional classroom experiences. There are different types of dyslexia such as primary dyslexia, developmental or secondary dementia, trauma dyslexia, visual dyslexia, auditory dyslexia, and difficulty controlling and holding a pen or pencil to make the correct markings on paper (dysgraphia). Signs and symptoms of dyslexia may include difficulty with reading, writing, and spelling skills; slow to learn new vocabulary words; delayed early language development; difficulty with left and right hand tasks, and often dominance for one hand has not been established. Dyslexia is difficult to diagnose so there are a variety of tests for proper diagnosis, for example, WISC-III, KABC, PIAT, WIAT, KTEA, and TAPS. Treatment for dyslexia is focused on the affected individual's disabilities. Read more: Dyslexia Article
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