How is Intelligence Quotient (IQ) calculated?
a) MA + CA
b) MA - CA
c) MA * CA
d) MA/CA * 100
Answer & explanation
Correct answer: option 4
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.
IQ = MA/CA * 100