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"IQ" redirects here. For other uses, see IQ (disambiguation).
The IQs of a large enough population can be modeled with a Normal Distribution.
An intelligence quotient, or IQ, is a score derived from one of several different standardized tests attempting to measure intelligence. The term "IQ," from the German Intelligenz-Quotient, was coined by the German psychologist William Stern in 1912[1] as a proposed method of scoring early modern children's intelligence tests such as those developed by Alfred Binet and Théodore Simon in the early 20th Century.[2] Although the term "IQ" is still in common use, the scoring of modern IQ tests such as the Wechsler Adult Intelligence Scale is now based on a projection of the subject's measured rank on the Gaussian bell curve with a center value (average IQ) of 100, and a standard deviation of 15, although different tests may have different standard deviations. |
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