Question:
Who devised the concept of Intelligence Quotient (IQ)?
Who devised the concept of Intelligence Quotient (IQ)?
Updated On: Mar 27, 2025
- Alfred Binet
- Theodore Simon
- William Stern
- Lewis Terman
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The Correct Option is C
Solution and Explanation
The concept of Intelligence Quotient (IQ) was devised by William Stern in the early 20th century. He defined IQ as the ratio of mental age to chronological age, multiplied by 100. Although Alfred Binet and Theodore Simon developed the first standardized intelligence test, it was Stern who introduced the term “Intelligence Quotient” to quantify intellectual performance. Stern's formula allowed for a more standardized way to assess and compare intelligence across individuals.
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