I recently got an email from a very big brained (literally) PhD student who wanted to know his IQ. Based on your education, estimated brain size, and ethnic background, I estimated you would score 119 on an IQ test (or the equivalent on a college admission test).

However I didn’t need to estimate because you had already told me what your scores were. You “took the SAT twice in 2006 and scored 680V/660Q the first time and a 720V/630Q the second time.”

In the early 2000s, I estimate IQ = 23.835 + 0.081(SAT score), so these were the equivalent of scoring IQ132 and 133 respectively (U.S. norms).

You also say “I took the IQtest.dk, which is essentially a Raven’s progressive matrices test, in high school and got a 124.” The problem is I don’t know if IQtest.dk has valid norms.

You also state:

I’ve taken the GRE a few times and my score in 2010 was 630V/650Q. I took a practice test years later and scored 163V/155Q. After studying for a couple of months, I took the GRE two more times and was able to get a 170V/152Q/4A the first time and a 169V/161Q/4.5A the second.

So your combined (V + Q) scores on the new GRE (318 to 330) seem to equate to an IQ of 134 to 145! This is considerably higher than your IQ as derived from the SAT even though both tests measure similar skills (reading & math). I wonder if most people score higher on the GRE than the SAT because university is inflating their scores beyond their true ability.

You also state:

I took the online Wonderlic when I was in my early 20s and got a 31 on it. I took it again last year and got a 30.

This fits with my suggestion that thirty-somethings deserve a 1 point age bonus on the Wonderlic. A score of 31 = IQ 118 (remarkably close to what I estimated from your education and brain size, but now I’m just data mining)

You also write:

I’ve also recently taken the Open-psychometrics IQ test and scored a 137 Verbal/134 Spatial/121 Memory with a calculated 127 Full-scale IQ. The designers claim the norming is based on scores from proctored IQ tests and admissions test scores of users. I also took Antjuan Finch’s SAT/IQ test and I scored a 30/30 on the verbal section and, I believe, a 26/30 on the Quantitative.

I don’t recall Antjuan having a quantitative test (maybe you mean his non-verbal test).

Conclusion:

Assuming full disclosure, your test scores range from 118 (wonderlic) to about 140 (the mid-point of your GREs). Assuming these two tests correlate about 0.8 if the general U.S. population took both, this suggests a composite IQ of 131. This is 11 points higher than expected for a black American PhD with an assumed 1534 cc brain size.

But then your background is far more elite than the average black American’s. You write:

My parents are black African immigrants. My dad doesn’t have a formal college education but learned about computers on his own/on the job as they were becoming more important for business infrastructure and joined the IT revolution at the ground floor. When he retired, he was a director of IT at a cybersecurity company.

My mother has a community college degree in nursing but decided to focus on being a stay-at-home mother rather than having a job. When my brother and I were old enough to watch ourselves, she began to take on new jobs which she excelled at. Her jobs have included being a computer lab instructor for my school (not computer science, just teaching proper operation and security for them), a small business owner (though the 2008 financial crisis hit us hard), and an interior designer/event planner. She also manages our family’s finances. You’ll probably get a kick out of this: people have actually talked about getting a very Oprah-esque vibe from her.