IQ Estimates by College Major

```When one commits to making statements about the average, they may be talking about someone who never exists, but they make very nice statements.```

It reflects on our over used emphasis of the 50th percentile when making statistical statements that are meant to be informative. In policy, the average across a population, or subset of the population, is often used as a form of a "fairness" rule. IMHO, examining other quantiles can be much more informative about the nature of a distribution, perhaps for economic policy reasons.

Also, keep in mind that the study is deriving IQ from students' performance on standardized tests. These tests are primarily intended to measure education, rather than intelligence, and so this might simply be showing that the average education level of college students is higher than the average of the general population.

If they wanted to be honest about the reliability of their data, they would have left the IQ column off completely.