# The formula for calculation of Intelligence Quotient (IQ) is - (a) CA/MA x 100 (b) MA/CA x 100 (c) CA/100 x MA (d) 100/MA x CA

By Ritesh|Updated : November 1st, 2022

The formula for the calculation of the Intelligence Quotient (IQ) is MA/CA x 100. The shorthand for intelligence quotient is IQ. The intelligence quotient (IQ) is a numerical indicator of a person's intelligence. An individual has an IQ of 100 on average. The first practical IQ test was developed by French psychologist Alfred Binet and his collaborator Theodore Simon in 1905.

### Calculation of Intelligence Quotient

• The term "intelligence quotient" (IQ) refers to the ratio of mental age (MA) to chronological age (CA) multiplied by 100.
• The updated version, known as the Stanford-Binet Intelligence Scale, was released in 1916. Several IQs were utilised in this test. It offered a formula to calculate a person's IQ, which involves subtracting the person's mental age from his or her chronological age and multiplying the result by 100.

IQ = mental age/chronological age x 100

In order to avoid fractions in the division result, in this case, 100 is multiplied.

• MA must rise with CA over time in order for IQ to be stable.
• This is accurate up until the age of 18 when intellectual capacity is typically reached.
• As previously said, there was a misconception that intellectual aptitude began to wane after young adulthood.

Therefore, it is evident from the aforementioned arguments that the IQ calculation formula is MA/CA x 100.

Summary:

## The formula for the calculation of the Intelligence Quotient (IQ) is - (a) CA/MA x 100 (b) MA/CA x 100 (c) CA/100 x MA (d) 100/MA x CA

MA/CA multiplied by 100 is the formula for calculating the intelligence quotient (IQ). IQ is a common abbreviation for intelligence quotient. The Binet-Simon Scale was the name of the original IQ test.