For IQ, the average (mean) is heavily influenced by the number of low performers. It’s not a good indicator of what is going on with the ‘normal’ kids. Some of

For IQ, the average (mean) is heavily influenced by the number of low performers. It’s not a good indicator of what is going on with the ‘normal’ kids. Some of the observations here might indicate that there is a growing population of kids with social and mental problems. This is probably a much bigger problem than a mild decline of the median.