A reader wrote the following:
Hello PP, I was wondering if you could give a rough approximation of my IQ based on scores from different tests I’ve taken. I’ve never considered myself all that smart, and writing is not something I’m especially fond of so please excuse any grammatical errors.
SAT (taken in 2014): Math 660, Reading 630, Writing 620
ASVAB (2016): 96th percentile, GT Score 129
Queendom.com Classical IQ Test (December 23, 2018): 140 Overall, 137 Crystallized Intelligence, 147 Fluid Intelligence
I’m gonna post some pictures of the test scores below.
From the SAT picture you can also see my PSAT scores and a previous SAT score. The other scores are average. For context, I was unfamiliar with nearly all the formulas needed when taking the PSAT both times. I’ve also always been a very anxious test taker; literally shaking and sweating in a 70 degree room. I was also diagnosed with anemia around this time which might also be a factor. Weighing in at about 120 lbs standing 5’10, I was a walking stick. Was also put on free lunch at school and my mom was on food stamps, welfare, the whole gamut. My parents were pretty indifferent. On the first SAT test I took, a friend of mine recommended taking an adderall pill. This led to profuse sweating, blurry vision, frequent bathroom breaks, and uncertainty in all my answers. Before my second round with the SAT I tried studying but was never able to sit down and do it. Instead, I just familiarized myself with the test so I knew what section was gonna come next and knew the time constraints. I know studies show people don’t usually increase their SAT scores by more than 20 points per section, but I’ve personally heard of dozens of people increasing their scores by 100’s of points per section by taking multiple practice tests and learning the tricks on the SAT. Plus, some of my friends started studying for the SAT years in advance. Some as early as middle school.
When I took the ASVAB it was right after a hot and long 2 hour bus ride to the MEPS center. This was in California during the summer, and they didn’t feed us until after we took the test. I also didn’t really put forth my best effort because I was joining the Army and was kinda lackadaisical about it. It was pretty easy in all honesty though.
I heard about Queendom from Aaron Clarey on youtube and he said it gives a pretty good estimate on IQ because it averages from a pool of all people that took it. It also has some studies showing it correlates pretty well with the RAIS test. I took it in about 30 minutes although I’m skeptical because of how high it put me. In short, based on my previous scores where would you rank me? Is it possible my IQ went up from when I was a teenager? I also weigh about 170 now and have adopted the ketogenic diet. That’s one of the main differences between now and then.
Aaron Clarey’s video on Queendom’s IQ test:
Using my formula (IQ = 0.0566(SAT score) + 20.15094) your SAT scores of 1910 and 1660 (out of 2400) equate to IQs of 128 and 114 respectively (U.S. norms). Similarly, your 96th percentile on the ASVAB equates to an IQ of 126.
Given your health issues and test anxiety, I’d probably ignore the IQ 114 you got the first time you took the SAT as an outlier, and judge your teenage IQ based on a composite of your second SAT score (IQ 128) and your ASVAB score (IQ 126). Given the high correlation between these two tests, the composite score would be about 129.
As for your 140 overall IQ on the Queendom; this might be because the Queendom needs to improve its norms. The below chart shows that a sample of college students who took both the RIAS and the Queendom scored 111.12 (SD 8.35) and 117.88 (SD 11.5) respectively.
Given that the RIAS is an extremely well-normed test, this implies that Queendom gives scores that are (a) too high, and (b) too extreme.
To equate Queendom’s distribution with the RIAS distribution we must convert the Queendom score into a Z score with respect to this reference group that took both tests, and then multiply it by the reference group’s RIAS SD (Standard Deviation) and then add to their RIAS mean.
So since your Queendom score of 140 has a Z score of 1.92 in this reference group, it equates to an IQ of 1.92(8.35) + 111.12 = 127
So it seems your IQ has been quite stable and extremely high since your teenage years. An IQ in the high 120s puts you in the same range as U.S. presidents, Fortune 500 CEOs and (on non-college admission tests) the most elite university students on the planet.