What does IQ stand for?

a) Intellectual Quotient

b) Intelligence Quotient

c) Intelligent Quotient

d) Intellectual Quota

b

The correct answer is option 2: Intelligence Quotient

In 1912, William Stern, a German psychologist, devised the concept of Intelligence Quotient (IQ). IQ refers to mental age divided by chronological age, and multiplied by 100.