if a child's chronological age matches his or her mental age, then the child's IQ would be approximately
Correct answer: D. 100
- A. 90
- B. 75
- C. 125
- D. 100
Explanation
The traditional IQ formula is mental age divided by chronological age, multiplied by 100. When the two ages are equal, the ratio is 1, giving an IQ of approximately 100.
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