What do psychologists have to do every few years to keep the mean IQ at 100?
A)Make the IQ tests harder.
B)Make the IQ tests easier.
C)Use simpler vocabulary and sentence structure.
D)Provide extra training for low-performing students.

Question

Quizplus · Accepted Answer

Psychologists periodically recalibrate and make IQ tests harder to keep the mean IQ score at 100 due to the Flynn effect, which observes that IQ scores have been increasing over time across the world. This recalibration ensures that the average score remains centered at 100, despite overall increases in test performance.

What Do Psychologists Have to Do Every Few Years to Keep