Resumen de Stalled
For at least a century, each generation has been measurably brighter than the last. But this cheerful chapter in social history seems to be drawing to a close. In Denmark, the most rapid rises in IQ,of about 3 points per decade, occurred from the 1950s to the 1980s. Scores peaked in 1998 and have actually declined by 1.5 points since then. Something similar seems to be happening in a few other developed countries, too, including the UK and Australia. Here, Holmes examines whether the century-long rise in intelligence has gone into reverse.
