Intelligence tests are constructed so that IQ scores
A) are an unbiased estimate of the population variance.
B) approximate a binomial distribution.
C) are distributed according to a normal curve.
D) are statistically independent from one another.

Question

Quizplus · Accepted Answer

Intelligence tests are designed to measure cognitive abilities and are constructed based on the assumptions that these abilities follow a normal distribution. IQ scores are then standardized based on this distribution, which allows for meaningful comparisons between individuals. Therefore, choice C (distributed according to a normal curve) is the correct answer. Choices A, B, and D are inaccurate because IQ scores are not constructed to estimate population variance, do not approximate a binomial distribution, and are not statistically independent from one another.

Intelligence Tests Are Constructed So That IQ Scores