Dallas is a 10-year-old boy who has a mental age of 10 years. His IQ would be
A) 80.
B) 100.
C) 115.
D) 130.
E) 1000.

Name: Dallas is a 10-year-old boy who has a mental age of 10 years. His IQ would be A) 80. B) 100. C) 115. D) 130. E) 1000.
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Question

Quizplus · Accepted Answer

IQ tests are designed so that the average score is 100, and the standard deviation is 15. Therefore, a person with a mental age of 10 years will have an IQ of 100 (since 10/10 = 1, and 1 x 100 = 100).

Dallas Is a 10-Year-Old Boy Who Has a Mental Age