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.
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Replying to @RealYeyoZa
*Controlling for sex, testosterone doesn't influence athletic performance.
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Replying to @SwipeWright @RealYeyoZa
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)
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>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*
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"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
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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
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Replying to @CovfefeAnon @zackmdavis and
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
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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
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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.
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Replying to @CovfefeAnon @zackmdavis and
David Epstein in "The Sports Gene" says baseball hitting is heavily tied to excellent eyesight, that 20-12 or even 20-10 is not uncommon on major league rosters.
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Isn't it strange that the first sport that was integrated in America was one where there's no major advantage for blacks over whites or vice versa? I wonder what kind of effect that has on history.
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Replying to @CovfefeAnon @Steve_Sailer and
What's interesting is that soccer in latin america was integrated long before US team sports. Already in 1917 several teams in Copa America fielded black players.
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