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Woodcock–Johnson Tests Of Cognitive Abilities
The Woodcock–Johnson Tests of Cognitive Abilities is a set of intelligence tests first developed in 1977 by Richard Woodcock and Mary E. Bonner Johnson (although Johnson's contribution is disputed). It was revised in 1989, again in 2001, and most recently in 2014; this last version is commonly referred to as the WJ IV. They may be administered to children from age two right up to the oldest adults (with norms utilizing individuals in their 90s). The previous edition WJ III was praised for covering "a wide variety of cognitive skills". Sections of the test The Cattell–Horn–Carroll theory factors that this test examines are based on 9 broad stratum abilities, although the test is able to produce 20 scores only seven of these broad abilities are more commonly measured: comprehension-knowledge (Gc), fluid reasoning (Gf), short-term memory (Gsm), processing speed (Gs), auditory processing (Ga), visual-spatial ability (Gv), and long-term storage and retrieval (Glr). Comprehensio ...
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Intelligence Quotient
An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. Originally, IQ was a score obtained by dividing a person's mental age score, obtained by administering an intelligence test, by the person's chronological age, both expressed in terms of years and months. The resulting fraction (quotient) was multiplied by 100 to obtain the IQ score. For modern #Current tests, IQ tests, the test score, raw score is Data transformation (statistics), transformed to a normal distribution with mean 100 and standard deviation 15. This results in approximately two-thirds of the population scoring between IQ 85 and IQ 115 and about 2 percent each Intellectual giftedness, above 130 and Intellectual disability, below 70. Scores from intelligence tests are estimates of intelligence. Unlike, for example, distance and mass, a concrete measure of intelligence cannot be achieved given the abstract nature of the concept o ...
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Richard Woodcock
Richard Wesley Woodcock (January 29, 1928 – January 2, 2024) was an American psychometrician. He is known for his work on the Cattell–Horn–Carroll theory of human intelligence and for his work in the development of several cognitive tests, including the Woodcock–Johnson Tests of Cognitive Abilities and the Dean–Woodcock Neuropsychological Assessment System. He is also credited with introducing the Rasch model into psychometrics, psychometric research. He was a fellow of the American Psychological Association and the American Academy of School Psychology, as well as a Diplomate of the American Board of Professional Psychology. In 1993, he received the Senior Scientist in School Psychology Award from Division 16 of the American Psychological Association. Two research institutes are named after him: the Woodcock Education Center at Western Oregon University, and the Woodcock Institute for Advancement of Neurocognitive Research and Applied Practice at Texas Woman's University ...
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Riverside Insights
Riverside Insights is a United States publisher of clinical and educational standardized tests in the United States; it is headquartered in Itasca, Illinois. It is a charter member of the Association of Test Publishers. Riverside Insights was established as a wholly owned subsidiary of Houghton Mifflin Harcourt (HMH) in 1979. HMH sold Riverside to private equity firm Alpine Investors for $140 million in 2018. The company was incorporated as Riverside Assessments LLC in Delaware and subsequently in other states, including Illinois. History Early history Riverside originated in 1852 as The Riverside Press, a book printing plant in Boston, Massachusetts. Henry Houghton originally started The Riverside Press in an old Cambridge building along the banks of the Charles River. A visitor described it as "one of the model printing-offices in America". Houghton chose to employ women as well as men as compositors, a radical decision which he said was influenced by the Victoria Press in ...
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Intellectual Giftedness
Intellectual giftedness is an intelligence, intellectual ability significantly higher than average and is also known as high potential. It is a characteristic of children, variously defined, that motivates differences in school programming. It is thought to persist as a trait into adult life, with various consequences studied in longitudinal studies of giftedness over the last century. These consequences sometimes include stigmatizing and social exclusion. There is no generally agreed definition of giftedness for either children or adults, but most school placement decisions and most longitudinal studies over the course of individual lives have followed people with Intelligence quotient, IQs in the top 2.5 percent of the population—that is, IQs IQ classification#Giftedness, above 130. Definitions of giftedness also vary across cultures. The various definitions of intellectual giftedness include either general high ability or specific abilities. For example, by some definitions, a ...
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Intelligence Tests
An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. Originally, IQ was a score obtained by dividing a person's mental age score, obtained by administering an intelligence test, by the person's chronological age, both expressed in terms of years and months. The resulting fraction ( quotient) was multiplied by 100 to obtain the IQ score. For modern IQ tests, the raw score is transformed to a normal distribution with mean 100 and standard deviation 15. This results in approximately two-thirds of the population scoring between IQ 85 and IQ 115 and about 2 percent each above 130 and below 70. Scores from intelligence tests are estimates of intelligence. Unlike, for example, distance and mass, a concrete measure of intelligence cannot be achieved given the abstract nature of the concept of "intelligence". IQ scores have been shown to be associated with such factors as nutrition, parental soc ...
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