Methinks someone's in for a surprise in 2019.https://twitter.com/amy_harmon/status/1080101555909652480 …
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Replying to @KirkegaardEmil
I like Francis Collins's response though, saying that experts believe that the black-white IQ gap is "primarily" due to environmental, not genetic, factors. Either he was being very skillful here, or he was making an attempt to summarise results of surveys of expert opinion.
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Replying to @NiklasForberg
He basically referred to opinion from this survey which finds about 80% environment as mean estimate, but this question was about international gaps not USA black-white. Expert opinion on the latter is 50-50, not primarily environmental.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4804158/ …
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Replying to @KirkegaardEmil @NiklasForberg
The research done by the International Society of Intelligence research found a mean value of 47% genetics, what research showed 50-50?
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Replying to @Rogerindividuo @NiklasForberg
Not done by ISIR, it's Rindermann's survey.
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Replying to @KirkegaardEmil @NiklasForberg
Are you referencing this research? http://emilkirkegaard.dk/en/wp-content/uploads/2013-survey-of-expert-opinion-on-intelligence.pdf …
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It's the same one survey, just broken into multiple publications. The relevant one here is presented here:https://www.unz.com/jthompson/who-are-the-iq-experts/ …
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