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.

A Northwestern University study shows a decline in three key intelligence testing categories—a tangible example of what is called the Reverse Flynn Effect. Leading up to the 1990s, IQ scores ...

There is a little-known phenomenon known as the Flynn effect. It basically states that from the early 1930s throughout the 20th century, IQ scores have significantly increased all around the ...

This Flynn effect (of increasing scores on IQ tests) does seem to be real. It also seems to happen when countries get to a certain stage of health, education and welfare.

The Flynn effect, unfortunately, may have its limits, and humanity is not just going to get marginally smarter every decade until we are all just massive brains in vats sat around discussing ...

A Northwestern University study shows a decline in three key intelligence testing categories—a tangible example of what is called the Reverse Flynn Effect. Leading up to the 1990s, IQ scores ...

But a new study from Northwestern University has found evidence of a reverse "Flynn effect" in a large U.S. sample between 2006 and 2018 in every category except one.

The Reverse Flynn Effect: A Troubling Trend. For much of the 20th century, IQ scores around the world consistently increased.

IQ levels have been falling since 1975, reversing a century-long trend of rising intelligence quotients identified as the Flynn Effect. Research indicates this decline in IQ scores is due to ...

Intelligence quotient (IQ) scores appear to be dropping in the U.S., showing a reversal of what's known as the Flynn Effect, a new analysis has found.