Intelligence Quotient (IQ)

Question 1

What is the difference between a Ratio IQ and a Deviation IQ score?

Answer 1

Ratio IQ is the measure of intelligence that compares a person’s mental age to their chronological age. It is calculated by dividing the mental age by chronological age and multiplying by 100. Deviation IQ is scored based on how an individual deviates from the average IQ of 100.

Question 2

How are IQ scores distributed in the population?

Answer 2

A bell curve