Here's how average IQ varies depending on age, geographic location, and occupation. What is IQ? The intelligence quotient (IQ) score is a number that attempts to measure an individual's ...

Children of certain age groups quickly answered specific ... 120 would be described as 'above average or bright' on an IQ scale. The average score is 100, and 68% of all people have scores between ...

All of the data below is from Simonton’s corrected estimates of the presidents’ IQs after age 18. For context, every IQ test ...

The Flynn effect is named after New Zealand scientist James Flynn, who, in the 1980s, discovered that the average IQ in industrialized countries was steadily increasing by 3–5 points per decade.