Intelligence quotient (IQ) is a measure of human intelligence. People who want to have their IQ measured take standardized tests and receive a score that ranks their intelligence level. The higher one's IQ score, the more intelligent that person is considered to be.
IQ and Education: Two Sides of the Same Coin
IQ scores typically reflect the quality of education and resources available to people in their local geographic region. Areas of the world with lower IQ scores are typically poorer and less developed, particularly in the area of education, compared to countries with higher IQ scores. Many researchers also use IQ to determine the smartest countries in the world. The IQ map above shades each country depending on how high the average IQ score is. A darker shade of violet indicates a lower IQ score. Conversely, countries with a higher average IQ score appear red-orange in color.