Who developed the concept of the Intelligence Quotient (IQ)?

a) Sir Francis Galton
b) Alfred Binet
c) Lewis Terman
d) David Wechsler

1 answer

The concept of the Intelligence Quotient (IQ) was developed by Lewis Terman. While Alfred Binet initially created a scale to measure intelligence, Terman adapted Binet's work and introduced the term "Intelligence Quotient" in his revision of the Binet-Simon test. Therefore, the correct answer is:

c) Lewis Terman.