That's exactly what behavior genetics has done for a century, its distinguish those effects through clever research designs
Journalists & psychologists often report IQ's heritability averages only .50 across studies and ages. But, it's only that low in childhood. It consistently reaches .80 heritability by age 18, plateaus there through at least age 50, and drops only a bit later in life.https://twitter.com/a_centrism/status/1183214965114712064 …
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When you see the familiar "50% heritable/50% environment" estimate in articles in the media it's often being advanced by writers or scientists (like Paige Harden) who have an explicit political agenda and don't want the public to know just how high the genetic component of IQ is.
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Also true. And the '50% environment' usually means, of course, '50% nonshared environment', i.e. 'partly measurement error, partly random developmental effects, partly we have no idea, but definitely not family influences'
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This is much easier to accept if you have a high iq. I understand the resistance, people love to think that it is less heriditable to keep the fantasy alive that social constructs can change the outcomes in ways it just can not.
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When UK politicians bang on about increasing the population %, going to university, they'd do well to remember what fraction of *our* population is essentially ineducable
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It's also 100% pseudoscience through all your life.
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Why the IQ rollercoaster between ages 10 and 18?
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Hormones, hormones and perhaps hormones...
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No, they don't.
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