Question

Seven-year-old Jarrod is in the second grade. He is quite bright and can do the work of a nine-year-old child. If Jarrod were to take Binet's original intelligence test, he would likely have:____________

Answer 1

C. the mental age of 9.

Step-by-step explanation:

The Binet's test is gotten by comparing the individuals mental age to his chronological age multiplied by 100. that is;

IQ = (mental age/chronological age) x 100.

Since Jarrod can do the work of a 9 year old, his mental age is 9 even though is chronological age is 7, and his IQ is calculated below'

IQ = (9/7) x 100

!Q = 129%.