The average IQ level of people has increased since 1950 by about 20 points.
Researchers from King's College London analyzed data on intelligence than 200 000 people from 48 countries over the past 64 years.
Experts have studied the Raven test results designed to assess the level of intellectual development. This test is widely used in various countries for about 80 years.
It was found the average IQ level of people has increased since 1950 by about 20 points. Previously, James Flynn, philosopher and psychologist at the University of Otago, said that IQ tests over the years become more complex, but the results remain the same people. This phenomenon is called the "Flynn effect ".
The average test result IQ - 100 points. Perhaps if modern man performed a test for intelligence about 100 years ago, it would have scored 130 points. The result of her ancestors to modern test amounted to only 70 points.
This is a very significant difference. Possible causes of this phenomenon - improving education, quality health care and nutrition.