IQ Full Form

IQ Full Form

Edited By Team Careers360 | Updated on Jan 05, 2023 10:20 AM IST

What is the full form of IQ?

IQ Full Form is Intelligence Quotient. Intelligence quotient (IQ) is a number used to express a person's intelligence. The abbreviation is “IQ”. It is the total score gained from a set of standardised measures developed to calculate a person's intelligence.

Psychologist William Stern invented the phrase “IQ” for the German Word “Intelligenzquotient.” Alfred Binet and Theophile Simon in 1905 introduced the first intelligence test.

IQ was initially calculated by taking the ratio of mental age to physical age and multiplying by100.

For example : If a 20 year man has a mental age of 30 ,his IQ would be 3020 100. = 150.

Many tests determine the IQ of a person. The value derived from the test determines the intelligence of an individual. An individual's IQ can be measured from one of the many tests developed for gathering data.

Importance of IQ

  • IQ tests help to measure the reasoning level of an individual.

  • It helps teachers to understand whom to be given additional attention to.

  • Companies adopt this to select the right candidate capable of thinking out of the box.

  • It helps to form an idea about memory of an individual

  • It helps to assess problem solving skills.

IQ Full Form
IQ Full Form

IQ tests

IQ tests are designed to have an average score of 100. An upward and downward difference of 15 IQ scores is set . Almost 68% of individuals have an IQ between 85 to 100. It varies from country to country,scenario to scenario. IQ score is influenced by various environmental factors like-

  • Quality education

  • Proper nutrition

  • Low level of contagious diseases

  • Socio economic factor

IQ tests involve an array of questions to assess an individual's reasoning capacity and problem-solving skill. Some of the widely used IQ tests are-

  • Wechsler Intelligence Scale for Children (WISC - V)

  • Wechsler Intelligence Scale for Adults (WAIS)

  • Stanford - Binet Intelligence Scale

  • Differential Ability Scales (DAS)

  • Peabody Individual Achievement Test.

Frequently Asked Questions (FAQs)

1. What is the full form of IQ?

   Intelligence Quotient

2. Who invented the Term IQ?

Psychologist William Stern

3. What is the average IQ score?

100

4. Who invented the first Intelligence Test?

Alfred Binet and Theophile Simon

5. How was the IQ Test done initially?

Taking the ratio of Mental age to Chronological age and Multiplying by 100.

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