When psychologists have revised the IQ tests every few years,what has been the trend?
A)Each revision uses simpler vocabulary and sentence structure.
B)Each revision makes the test easier.
C)Each revision makes the test more difficult.
D)Each revision decreases the amount of variation in scores.

Question

Quizplus · Accepted Answer

Each revision of IQ tests has made them more difficult by increasing the complexity and sophistication of the questions and tasks. This is done to ensure that the test remains a valid and reliable measure of intelligence, as people tend to become more knowledgeable and skilled over time. Additionally, the trend toward greater difficulty may be driven in part by a desire to reduce the degree of score compression or "ceiling effects," wherein many individuals score at the highest possible level, which makes it difficult to differentiate among people at that level of ability.

When Psychologists Have Revised the IQ Tests Every Few Years,what