CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -An individual’s mental age is then divided by his chronological age and multiplied by 100, yielding an intelligence quotient (IQ). Thus, a subject whose mental and chronological ages are identical has an IQ of 100, or average intelligence.

Detailed explanation-2: -IQ, (from “intelligence quotient”), a number used to express the relative intelligence of a person. It is one of many intelligence tests. IQ was originally computed by taking the ratio of mental age to chronological (physical) age and multiplying by 100.

Detailed explanation-3: -Mental age is based on your intellectual development, while chronological age is based on the calendar date on which you were born. If your chronological age and your mental age are the same, you are said to be of average intelligence.

Detailed explanation-4: -When a person’s mental age is equal to his chronological age, she/he is said to have a normal/average IQ. If an individual’s IQ lies in the 90-109 range, it means his/her IQ is normal/average. For example, if the mental age and chronological age of Poonam are 9 and 9 respectively., then her IQ would be 9/9 x 100 = 100.

Detailed explanation-5: -Let’s say the individual being tested is 23 years old. The psychologist would first take the individual’s IQ score and divide it by the standard of 100 for a result of 1.2. Then the psychologist would multiply the answer by the person’s chronological age of 20 to get a mental age of 24.