Intelligence — psychology STD 12 Arts — Question

A child's age by birth has to be considered to select and calculate mental age. The number of correct answers given by a child helps to determine his mental age. For each correct answer, months mental age is calculated. There are six questions each in every year of age. If the child gives all correct answers to the test of higher age than his age, than it should be considered as his basic age.
The following table indicates the calculation of mental age as per standford - Binet Test.

Age of the child	Total Questions in Test	No of right answers given	Each correct answer is given two months	Total MA
Intelligence test of 8 yrs. All questions are correct base year.	6	08 * 6 = 48	48 * 2	96
9yrs	6	3	03 * 2	6
10 yrs	6	2	02 * 2	4
11 yrs	6	1	01 * 2	2
12 yrs	6	No Correct Answer	0	0
			Total Mental Age	108

Then child's chronological age and mental age are compared. The higher the mental age, the brighter the child is. The mental age is lower in mentally retarded children.