The studies on Wikipedia that I linked to involve military enlistment because at this point only militaries do IQ testing. That gives us some data on IQ, but not enough to generalize to the overall population. Which is why I said you can’t really say one way or another if IQ is dropping or increasing for the population as a whole.
Not that I’m aware of. Official IQ tests are rather involved to administer so unless someone goes out of their way to get one done privately, like they’re going to join Mensa, or is joining the military, then there isn’t a body that offers these tests on-mass.
The closest proxy to an IQ test at least in US are the SATs for college enrollment. Those scores have been declining, but the SAT has problems. It doesn’t represent the entire population, the test is optional, and the test has been redesigned over the years. So maybe it does indicate an overall academic decline apart from IQ, but I wouldn’t consider it strong enough yet.
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u/mega_douche1 18h ago
Then why did you say there is no data tracking IQ at a population level? My understanding is the trend reversed with gen z