Question

Write short notes on the following :

Intelligence Quotient

Explain the following concepts in 25 to 30 words:

Intelligence Quotient

Answer 1

1. The concept of Intelligence Quotient (I.Q.) was introduced by German psychologist William Stern in 1912.

2. Stern computed I.Q. as a ratio of Mental Age (M.A.) to Chronological Age (C.A.). This formula is given as:

`("I"."Q".) = ("Mental Age (M. A.)")/("Chronological Age(C.A.)")`

3. Later, Terman refined the formula of I.Q. by multiplying the ratio of M.A. and C.A. by 100. This formula is given as:

`("I"."Q".) = ("Mental Age (M. A.)")/("Chronological Age(C.A.)") xx100`