intelligence quotient

quotient /quo·tient/ (kwo´shent) a number obtained by division.

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achievement quotient  the achievement age divided by the mental age, indicating progress in learning.

caloric quotient  the heat evolved (in calories) divided by the oxygen consumed (in milligrams) in a metabolic process.

intelligence quotient  a measure of intelligence obtained by dividing the mental age by the chronological age and multiplying the result by 100.

respiratory quotient  (RQ) the ratio of the volume of carbon dioxide given off by the body tissues to the volume of oxygen absorbed by them; usually equal to the corresponding volumes given off and taken up by the lungs.

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intelligence quotient

n. Abbr. IQ

An index of measured intelligence expressed as the ratio of tested mental age to chronological age, multiplied by 100.

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intelligence quotient (IQ),

a numeric expression of a person's intellectual level as measured against the statistical average of his or her age group. On several of the traditional scales, it is determined by dividing the mental age, derived through psychologic testing, by the chronologic age and multiplying the result by 100. Average IQ is considered to be 100. Compare achievement quotient. See also accomplishment quotient.

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intelligence,

n mental potential or capacity; an individual's total repertoire of problem-solving and cognitive discrimination responses that are usual and expected at a given age level and in the large population unit; that which is measured by an intelligence test.

intelligence dental, quotient,

n an estimated appraisal of a patient's knowledge and appreciation of dental services.

intelligence quotient (IQ),

n an estimate of intelligence level; an index determined by dividing the mental age in months by the chronologic age in months and multiplying the result by 100. Thus the IQ of a child of 100 months with a mental age of 110 months would be 110.

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intelligence quotient

 A ratio that compares a person's cognitive skills with that of the general population, usually calculated as the mental age divided by the chronologic age, multipled by 100

Intelligence Quotient Tests

Preschool Bayley Scale of Infant development, Stanford-Binet Intelligence Scale, McCarthy Scales of Children's Abilities, Kaufman Assessment Battery for Children

School age Wechsler scales, Stanford-Binet Intelligence Scale, Kaufman Assessment Battery for Children

Adult Wechsler scales, Stanford-Binet Intelligence Scale

Adult  20-35  Severe mental retardation

  36-51 Moderate mental retardation

  52-67 Mild mental retardation

  68-83 Borderline mental retardation

  90-110 Average

  >140 Gifted–'genius'