[ml/nj]

I.Q. scores have been rising steadily

I thought IQ scores were statistically based: 100 meant you made the average score, 115 meant you were one standard deviation above the mean, 130 two standard deviations. How can such scores rise?

ML/NJ

[achilles2000]

By renorming the test. I’ve seen articles lately that have said that there are indications that the Flynn effect is now reversing. Nobody knows what to make of it.