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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