The Flynn Effect, or the rise in average IQ scores over the last century, has puzzled researchers for years. But a new study suggests that the increase may be due to better educational opportunities and increased exposure to different cultures.

IQ scores have been increasing steadily since the early 20th century, according to a study published in the journal Intelligence. The researchers analyzed data from more than a million people and found that the average IQ score increased by three points between 1920 and 1998.

The Flynn Effect has puzzled researchers for years because there is no clear explanation for why IQ scores are increasing. Some theories suggest that better educational opportunities and increased exposure to different cultures are responsible for the increase, while others suggest that genetics play a role.

The new study suggests that the increase may be due to better educational opportunities and increased exposure to different cultures. The study found that children who grow up in regions with higher IQ scores are more likely to have opportunities for better education. These opportunities can lead to better jobs and increased exposure to different cultures.

The Flynn Effect is still a mystery, but this new study provides some clues about why IQ scores are increasing.