Every few years psychologists restandardize IQ tests to maintain a constant mean and distribution. If they had not done so, what would have happened to the mean IQ score of the population?
A) it would have increased until about 1970 and then leveled off
B) it would have increased until about 1970 and then declined
C) it would have increased steadily over the decades
D) it would have decreased steadily over the decades
Correct Answer:
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