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BASIC INFORMATION ON DYSLEXIA
Introduction
1.1. Clarifying the Terms Dyslexiaand Learning Disabilities
1.2. Important Facts and General Information About Dyslexia
1.3. Signs and Symptoms of Dyslexia
1.4. Decades of Research: What We Now Know About Dyslexia
1.5. Other Common Problems
1.6. Common Strengths and Positive Characteristics of People with Dyslexia
1.7. Diagnosing Dyslexia
1.8. Research-Based Intervention Programs for Struggling Readers
1.9. What Children with Dyslexia Need from Parents and Teachers
1.10. Key Instructional Components and Interventions for Students with Dyslexia
1.11. Dual or Multiple Exceptionalities (Gifted and Dyslexic)
Resources
Introduction
Knowledge about dyslexia continues to be updated and clarified. Research, better assessment tools, professional training, and availability of effective intervention programs all contribute to a positive outlook for todayās students with dyslexia.
An understanding of both the diagnosis and the treatment of dyslexia will help parents and educators work together with students who have the disorder to maximize students ā school success.
1.1 Clarifying the Terms Dyslexia and Learning Disabilities
Question: My fourth-grade child was diagnosed at school as having learning disabilities. He had great trouble learning the letters of the alphabet and their sounds when he was younger. Reading is a struggle. When he reads, it is slow and very frustrating for him. His spelling is so poor, itās hard to decipher what he writes. My friend told me it sounds like dyslexia. Could this be?
⢠The answer to the preceding question is yes. Dyslexia refers to a language-based learning disability in basic reading skills and spelling. The problems of children with dyslexia most commonly stem from difficulty in processing speech sounds within words and making the connection between sounds and written symbolsāletters and patterns of letter combinationsāthat represent sounds in words.
⢠Most school districts throughout the United States typically do not use the term dyslexia. Some states, like Texas, now do.
⢠Under the Individuals with Disabilities Education Act (IDEA), the federal special education law, there are thirteen categories of disabilities. āSpecific learning disabilitiesā is one of those categories. Specific learning disabilities (SLD) or learning disabilities(LD) are the terms typically used in schools.
⢠Learning disabilities is an umbrella term that describes specific problems with processing information and learning skills. Dyslexia is one of the disabilities that is included in learning disabilities.
⢠Dyslexia is the most common learning disability. Approximately 80 percent of students identified as having learning disabilities who qualify for special education have reading disabilities (dyslexia).
Definition of Dyslexia
The International Dyslexia Association (2008a) defines dyslexia as āa specific learning disability that is neurobiological in origin. It is characterized by difficulties with accurate and/or fluent word recognition and by poor spelling and decoding abilities. These difficulties typically result from a deficit in the phonological component of language that is often unexpected in relation to other cognitive abilities and the provision of effective classroom instruction. Secondary consequences may include problems in reading comprehension and reduced reading experience that can impede growth of vocabulary and background knowledge ā (adopted by the board of the International Dyslexia Association, November 2002, and the National Institutes of Health, 2002).
Commonly Accepted Descriptions of Dyslexia
⢠Dyslexia is a Greek word meaning āpoor language.ā
⢠Dyslexia is a language-based disorder that involves weaknesses in phonological awareness, word decoding, and the ability to do rapid naming (quickly name common items or symbols such as colors, numbers, and familiar objects) and quick recall.
⢠Dyslexia is a brain-based disorder that causes difficulty in using and processing linguistic (speech) and symbolic (letter) codesāthat is, letter-sound correspondence.
⢠Primary characteristics of dyslexia include
⢠Difficulty in decoding individual words
⢠Slow, inaccurate oral readingāpoor reading fluency
⢠Spelling weaknesses
Often, dyslexia produces difficulties in other reading and language areas such as reading comprehension, vocabulary, and written language. Individuals with dyslexia exhibit these characteristics to varying degrees, but the characteristics frequently appear in some combination.
What Are Learning Disabilities?
The National Center for Learning Disabilities (NCLD, 2009) defines a learning disability (LD) as āa neurological disorder that affects the brainās ability to receive, process, store and respond to information. The term learning disability is used to describe the seeming unexplained difficulty a person of at least average intelligence has in acquiring basic academic skills. These skills are essential for success at school and work, and for coping with life in general. LD is not a single disorder. It is a term that refers to a group of disorders ā (n.p.).
⢠Learning disabilities are neurologically based problems with processing information. These affect one or more processes of input (taking in), integrating (organizing, sequencing, remembering), and output (expression) of the information.
⢠The problems associated with learning disabilities interfere with one or more of the following: learning reading, writing, or math, and may affect a personās ability to speak, listen, reason, recall, or organize information.
⢠Children with learning disabilities have difficulties with learning and performing particular skills, and demonstrate underachievement in certain academic areas. For those with dyslexia, the particular skill deficits and underachievement are predominantly in reading and spelling.
⢠Learning disabilities (including dyslexia) are called hidden disabilities because they are not visible and are not physically obvious.
⢠Specific learning disabilities are unexpected in relation to a childās age and cognitive and academic abilities. One would not expect the problems the child is experiencing in learning, given his or her average or above-average intellect and other skills and abilities.
⢠There are school districts that, in practice, do not require average or above-average measured intelligence in order to be classified as learning disabled.
⢠Federal special education law (IDEA, 2004) defines a specific learning disability as āa disorder in one or more of the basic psychological processes involved in understanding or in using language, spoken or written, which may manifest itself in an imperfect ability to listen, think, speak, read, write, spell, or do mathematical calculations. . . .ā
⢠The lawās definition also states that the term specific learning disability ādoes not include a learning problem that is primarily the result of visual, hearing, or motor disabilities, of mental retardation, of emotional disturbance, or of environmental, cultural, or economic disadvantageā (United States Code [20 U.S.C. §1401 (30)]).
1.2 Important Facts and General Information About Dyslexia
⢠Estimates of the number of people in the United States with dyslexia vary from 5 to 17 percent of the population.
⢠Approximately 3 to 4 percent of students in U.S. schools receive special education services for a reading disability. Far more children who have dyslexia do not receive special education.
⢠Dyslexia is not caused by
⢠Poor parenting or lack of educational opportunities
⢠Poor teaching or type of reading instruction
⢠Environmental factors
⢠Visual or hearing problems
⢠Lack of motivation
⢠Dyslexia affects people all over the world.
⢠Dyslexia is a lifelong condition. However, intervention can have a very positive impact on a personās ability to read and write.
⢠Contrary to what many people believe, children with dyslexia do not see letters and words backward. Letter reversals (b/d, p/q), as well as errors in directionality and sequencing of letters within words (was/saw, on/no), are common in young children with and without dyslexia but may be symptomatic of dyslexia after the early grades.
⢠Dyslexia is found in both boys and girls in similar numbers, although it is more commonly diagnosed in boys.
⢠Many characteristics and areas of difficulty are commonly associated with dyslexia. (See Checklists 1.3 and 1.5.) However, each person has his or her own combination of strengths and weaknesses, and the areas of weakness may vary from mild to severe.
⢠Early identification and intervention (that is, when a child is in kindergarten through second grade) are most effective in preventing reading problems.
⢠Research shows that with appropriate early intervention, 75-90 percent of children who are at-risk readers can overcome many of their difficulties and increase their reading skills to an average level.
⢠Although early identification and intervention provide the greatest chances for success, most children with reading disabilities are not diagnosed until they are in the middle or upper elementary grades.
⢠Many children, teens, and adults with dyslexia go undiagnosed, particularly those with mild degrees of dyslexia. Many fall through the cracks of their school system and never receive the specialized instruction they need to build reading co...