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 were ...

IQs have dropped for the first time in American history, and the experts aren’t quite sure why. The study found that “scores of verbal reasoning (logic, vocabulary), matrix reasoning (visual problem ...

Scores of verbal reasoning, matrix reasoning and letter and number series declined; scores of 3D rotation generally increased Study provides evidence of a reverse ‘Flynn Effect’ in the U.S. between ...

Raven's Advanced Progressive Matrices is a widely used standardized test to measure reasoning ability. One drawback, however, is that the test takes 40 to 60 minutes to complete. Another is that the ...