The formula of IQ is:
Correct answer: D. IQ=mental age divided by chronological age X 100
- A. Mental age=chronological divided by 100
- B. Chronological age+Mental age=IQ
- C. IQ=mental age X chronological age X 100
- D. IQ=mental age divided by chronological age X 100
Explanation
The traditional IQ formula is mental age divided by chronological age, multiplied by 100. Thus, a mental age equal to chronological age produces an IQ of 100.
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