According to Your Textbook, Which of the Following Is True

Multiple Choice

According to your textbook, which of the following is true regarding the population level increases in intelligence test scores over time?

A) The increase indicates that children today are actually smarter than their parents were.
B) The increase is due to the fact that people are better test takers, not that they are smarter.
C) The increase is an illusion created by the way intelligence tests are normed.
D) The reasons for the increase are unclear, but may reflect the increased ability to process information quickly.