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Harriet recently took the WAIS-IV intelligence test. She was 20 years old at the time, and the result indicated that she had a mental age of 16. Harriet’s intelligence quotient (IQ) is ______.

1 Answer

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Answer: 80

Explanation:

Intelligence quotient (IQ) is calculated thus:( Mental age divided by chronological age) x 100

That is (M.A/C.A) *100

IQ= (16/20)*100

= 0.8*100

=80.

Therefore,Harriet’s intelligence quotient (IQ) is 80

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