Are Americans Getting Dumber?
11th March 2023
Mean scores on IQ tests rose generally in the U.S. beginning in the 1930s, apparently reflecting better nutrition and improved schooling. But that trend has now been reversed.
11th March 2023
Mean scores on IQ tests rose generally in the U.S. beginning in the 1930s, apparently reflecting better nutrition and improved schooling. But that trend has now been reversed.