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n. Abbr. IQ
1. A number seen as a measure of a person's intelligence, usually representing the person's score on an intelligence test as expressed in relation to the scores of others who have taken the same test, with the average score set at 100.
2. The ratio of tested mental age to chronological age, usually expressed as a quotient multiplied by 100. No longer in scientific use.
(Psychology) a measure of the intelligence of an individual derived from results obtained from specially designed tests. The quotient is traditionally derived by dividing an individual's mental age by his chronological age and multiplying the result by 100. Abbreviation: IQ
an intelligence test score that is obtained by dividing mental age, which reflects the age-graded level of performance as derived from population norms, by chronological age and multiplying by 100: a score of 100 thus indicates a performance at exactly the normal level for that age group. Abbr.: IQ
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|Noun||1.||intelligence quotient - a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)|
ratio - the relative magnitudes of two quantities (usually expressed as a quotient)
adult intelligence - the average IQ of the adults in a given population
borderline intelligence - the minimal IQ required for someone to function normally and independently in the world (without some form of institutional assistance)