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The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...
Richard Phillips Feynman ( / ˈfaɪnmən /; May 11, 1918 – February 15, 1988) was an American theoretical physicist, known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, as well as his work in particle physics for which he prop...
Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
- Differences in Individual IQ Classification
- IQ Classification Tables For Current Tests
- Historical IQ Classification Tables
- Classification of Low IQ
- Classification of High IQ
- See Also
- External Links
IQ tests generally are reliable enough that most people 10 years of age and older have similar IQ scores throughout life. Both the WAIS-IV and the Stanford-Binet Intelligence Scale, for example, have a reliability of 0.97 – 0.98 for IQ across all age groups. IQ test publishers use large and "representative samples, use items that measure their inte...
There are a variety of individually administered IQ tests in use.Not all report test results as "IQ", but most now report a standard score with a mean score level of 100. When a test-taker scores higher or lower than the median score, the score is indicated as 15 standard score points higher or lower for each standard deviation difference higher or...
Lewis Terman, developer of the Stanford–Binet Intelligence Scales, based his English-language Stanford–Binet IQ test on the French-language Binet–Simon test developed by Alfred Binet. Terman believed his test measured the "general intelligence" construct advocated by Charles Spearman (1904). Terman differed from Binet in reporting scores on his tes...
The earliest terms for classifying individuals of low intelligence were medical or legal terms that preceded the development of IQ testing.The legal system recognized a concept of some individuals being so cognitively impaired that they were not responsible for criminal behavior. Medical doctors sometimes encountered adult patients who could not li...
Genius
Francis Galton (1822–1911) was a pioneer in investigating both eminent human achievement and mental testing. In his book Hereditary Genius, written before the development of IQ testing, he proposed that hereditary influences on eminent achievement are strong, and that eminence is rare in the general population. Lewis Terman chose "'near' genius or genius" as the classification label for the highest classification on his 1916 version of the Stanford–Binet test. By 1926, Terman began publishing...
Giftedness
A major point of consensus among all scholars of intellectual giftedness is that there is no generally agreed upon definition of giftedness.Although there is no scholarly agreement about identifying gifted learners, there is a de facto reliance on IQ scores for identifying participants in school gifted education programs. In practice, many school districts in the United States use an IQ score of 130, including roughly the upper 2 to 3 percent of the national population as a cut-off score for...
Sundar Pichai. Pichai Sundararajan (born June 10, 1972 [3] [4] [5] ), better known as Sundar Pichai ( / ˈsʊndɑːr pɪˈtʃaɪ / ), is an Indian-born American business executive. [6] [7] He is the chief executive officer (CEO) of Alphabet Inc. and its subsidiary Google. [8] Pichai began his career as a materials engineer.
William, Prince of Wales (William Arthur Philip Louis; born 21 June 1982), is the heir apparent to the British throne. He is the elder son of King Charles III and Diana, Princess of Wales. William was born during the reign of his paternal grandmother, Queen Elizabeth II. He was educated at Wetherby School, Ludgrove School and Eton College. He ...
Pablo Ruiz Picasso (25 October 1881 – 8 April 1973) was a Spanish painter, sculptor, printmaker, ceramicist, and theatre designer who spent most of his adult life in France.One of the most influential artists of the 20th century, he is known for co-founding the Cubist movement, the invention of constructed sculpture, the co-invention of collage, and for the wide variety of styles that he ...
