Mental age and chronological age of a student are 8 and 8 respectively. Then his IQ would be

Intelligence refers to a set of different cognitive abilities to think rationally, act purposefully, resolve problems, and deal with the demands of the environment.

• In 1912, William Stern suggested the concept called Intelligent Quotient (IQ). It refers to the score of a standardized test that assesses and measures human intelligence.

Key Points

An individual’s Intelligence Quotient (IQ) is determined by the formula given below,

Where,

• Mental Age is based on intellectual development.
• Chronological Age is the number of years a person has lived.
• When a person’s mental age is equal to his actual age, he is said to have an average IQ.
• If an individual's IQ lies in the 90-109 range, it means his/her IQ is average.
• For example, if mental age and chronological age of a student are 8 and 8 respectively., then his IQ would be 8/8 x 100 = 100.

Important Points

Refer to the IQ table for further information:

Hence, it could be concluded that a if mental age and chronological age of a student are 8 and 8 respectively. Then his IQ would be of average level.