In case you're not familiar with the concept of "everest regression", coined by @GarettJones, here's a short description I found.pic.twitter.com/gnwbwOX2wz
Not to be confused with 2001 Nobel Peace Prize winner Kofi Annan. 54th Clause of the Magna Carta absolutist. Commentary from an NRx perspective.
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In case you're not familiar with the concept of "everest regression", coined by @GarettJones, here's a short description I found.pic.twitter.com/gnwbwOX2wz
Another example of an Everest regression would be; "if you control for bone length, men aren't taller than women". It's a pretty common trick.
*Controlling for sex, testosterone doesn't influence athletic performance.
I doubt that one's true—I would guess that within-sex variation in testosterone influences performance, too. Visuospatial ability might be an interesting example (the "optimal" T level is above the female mean but below the male mean)
>Visuospatial ability might be an interesting example (the "optimal" T level is above the female mean but below the male mean) Definitely not - hitting a baseball is the purest visuospatial test in sports and it's massively enhanced by exogenous testosterone*
"Definitely not"—overconfident much?! That would be an interesting speculation in the absence of better data, but people actually study this stuff! My source is Arthur Jensen, The g Factor, Ch. 13., who cites https://www.sciencedirect.com/science/article/pii/1041608095900055 … and https://www.sciencedirect.com/science/article/pii/1041608095900039 …pic.twitter.com/913YNOQ2LZ
Yes, optimal level of testosterone for the single most visuospatial weighted real world tested task is above that of a professional male athlete in peak condition and his performance improves greatly with testosterone supplementation. 1/2pic.twitter.com/qKzXIzpX3l
Somewhere below the first red line is when Bonds reacted to McGwire and Sosa eclipsing him (due to test supplementation) and joined in on it. This is better evidence than any possible study because all actors have skin in the game. No MLB hitter ever chose to suppress test 2/2
All baseball players have skin in the game of hitting baseballs, which we agree draws on some mental abilities (reaction time at the very least!). Not obvious that the thing Jensen means by "visuospatial" (which is what I meant in my Tweet about T) is a large component in hitting
It's an interesting question - what exactly is the mental trait involved in hitting a baseball? Needs reaction time, fast pattern recognition to recognize pitches, etc. Benefits from more T. Also seems to be a rare mental trait that doesn't show ability gaps between races.
Hey, @Steve_Sailer - what is up with hitting skill *not* differing noticeably by race? Isn't that unusual for a complex mental / physical trait?
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