Flynn and Horgan found that during the last 30 years that the average IQ has
A)increased 15 points in Westernized nations.
B)decreased 15 points in Westernized nations.
C)remained the same in Westernized nations, but increased in the underdeveloped ones.
D)increased only in Asian countries, not in Europe or the U.S.and Canada.

Question

Quizplus · Accepted Answer

Flynn and Horgan's research found that the average IQ has increased by 15 points in Westernized nations over the last 30 years. This is known as the Flynn effect, which suggests that IQ scores have been rising across generations due to improved education, nutrition, and technological advancements.

Flynn and Horgan Found That During the Last 30 Years