Deepika is 24 yrs old, she has solved correctly intelligence test made for 16 yrs; then what will be intelligence quotient of Deepika ?
MH SET - 2020, SET Exam - 2020,
Answer: A
Deepika's intelligence quotient is 100.
IQ is mental age over chronological age, times 100. In Terman's Stanford-Binet scale the chronological age of adults is taken as 16, since mental age as measured by such tests stops growing at about that age:
\[ \begin{aligned} IQ &= \frac{MA}{CA} \times 100 \\ &= \frac{16}{16} \times 100 = 100 \end{aligned} \]
Using her actual age of 24 would give 66, which is why that option is a trap. 150 and 120 have no basis in the data.
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