Intelligence quotient - Wikipedia
Raw scores on IQ tests for many populations have been rising at an average rate of three IQ points per decade since the early 20th century, a phenomenon called the Flynn effect. …
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IQ | Intelligence Testing, Cognitive Ability & Mental Age ...
Dec 11, 2025 · IQ, (from “intelligence quotient”), a number used to express the relative intelligence of a person. It is one of many intelligence tests.
Intelligence Quotient (IQ): Definition, Scoring ...
Nov 27, 2025 · Intelligence quotient (IQ) is a standardized score that expresses how far an individual’s performance on an intelligence test lies above or below the average for their age …
What Is a Genius IQ Score on an IQ Scale? - Verywell Mind
Jan 30, 2025 · What is considered a genius IQ score on an IQ scale? Learn about how IQ test scores are assessed, what IQ levels mean, and what percentage of people are geniuses.
What is IQ? – Mensa International
IQ is a type of standard score that indicates how far above, or how far below, his/her peer group an individual stands in mental ability.