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KirkegaardEmil's profile
Emil O W Kirkegaard
Emil O W Kirkegaard
Emil O W Kirkegaard
@KirkegaardEmil

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Emil O W Kirkegaard

@KirkegaardEmil

#psychology #genomics #hbd #rstats #statistics #genomics #transhumanism #dataviz #openscience #psychometrics @OpenPsychJour

Denmark
emilkirkegaard.dk
Joined January 2012

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    1. Synthetic‏ @SR71999 3 Nov 2018
      • Report Tweet
      Replying to @iskander @primalpoly

      The Flynn Effect is not g-loaded (even Flynn himself now admits this); and the g factor is the most heritable component of IQ scores. There's some evidence that g is even decreasing. The cause of the FE is unknown but is plausibly due to practice effects and the like.

      1 reply 1 retweet 6 likes
    2. alex rubinsteyn‏ @iskander 3 Nov 2018
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      Replying to @SR71999 @primalpoly

      Any papers I can read on that? Also, is there a standard method for decomposing IQ into something more directly correlated with g vs. other factors? And if so, why bother talking about IQ rather than this more informative derived quantity?

      2 replies 0 retweets 0 likes
    3. Synthetic‏ @SR71999 3 Nov 2018
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      Replying to @iskander @primalpoly

      General background on g - Jensen's "The g factor." Flynn's "What is Intelligence" for more on FE. Papers by Linda Gottfriedson are good for more on g. Non-technical example here ->https://www.cato-unbound.org/2007/11/08/linda-s-gottfredson/shattering-logic-explain-flynn-effect …

      1 reply 1 retweet 4 likes
    4. Synthetic‏ @SR71999 3 Nov 2018
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      Replying to @SR71999 @iskander @primalpoly

      For arguments on declining g, see the work of Michael Woodley. https://www.amazon.com/At-Our-Wits-End-Intelligent/dp/184540985X/ref=sr_1_1?ie=UTF8&qid=1541277030&sr=8-1&keywords=Michael+Woodley …

      1 reply 1 retweet 2 likes
    5. Synthetic‏ @SR71999 3 Nov 2018
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      Replying to @SR71999 @iskander @primalpoly

      g is typically computed from Principle Components Analysis (which I am in no way an expert of) from a psychometric test consisting of a battery of subtests. Each subtest's loading on this general factor can then be computed.

      2 replies 0 retweets 1 like
    6. Synthetic‏ @SR71999 3 Nov 2018
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      Replying to @SR71999 @iskander @primalpoly

      The Flynn Effect is on sub-tests which have very little g loading. Highly g-loaded subtests (like vocabulary and arithmetic) show virtually know change.

      3 replies 0 retweets 2 likes
    7. Synthetic‏ @SR71999 3 Nov 2018
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      Replying to @SR71999 @iskander @primalpoly

      I don't know a lot about calculating heritability beyond the basics. Perhaps others can fill in some technical details. cc: @NoamJStein @pnin1957 @KirkegaardEmil

      1 reply 0 retweets 0 likes
    8. Emil O W Kirkegaard‏ @KirkegaardEmil 3 Nov 2018
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      Replying to @SR71999 @iskander and

      Alex, the most prolific researcher on trying to figure out the mysterious of the Flynn effect and its related temporal correlates/causes is Michael Woodley. His output is enormous, so there is plenty to read. Skim his RG for relevant stuff.https://www.researchgate.net/profile/Michael_Woodley_Of_Menie/research …

      1 reply 0 retweets 1 like
    9. alex rubinsteyn‏ @iskander 3 Nov 2018
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      Replying to @KirkegaardEmil @SR71999 and

      I found "The social and scientific temporal correlates of genotypic intelligence and the Flynn effect", which afaict is just gibberish pseudoscience -- I feel like I've wandered into a weird space that's not really legit academia.

      1 reply 0 retweets 0 likes
    10. alex rubinsteyn‏ @iskander 3 Nov 2018
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      Replying to @iskander @KirkegaardEmil and

      Hey @hardsci & @kph3k -- can you point me to a more legit summary of the current understanding of intelligence measurement, its heritability, Flynn effect, and whether there's any robust method for measuring "g"?

      2 replies 0 retweets 0 likes
      Emil O W Kirkegaard‏ @KirkegaardEmil 3 Nov 2018
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      Replying to @iskander @SR71999 and

      I'd recommend @StuartJRitchie's and @rjhaier's recent textbooks. https://www.amazon.com/Intelligence-That-Matters-Stuart-Ritchie/dp/1444791877 … https://www.amazon.com/Neuroscience-Intelligence-Cambridge-Fundamentals-Psychology/dp/110746143X/ref=sr_1_2?s=books&ie=UTF8&qid=1541279736&sr=1-2&keywords=haier+intelligence+neuroscience …

      2:16 PM - 3 Nov 2018
      • 1 Retweet
      • 2 Likes
      • Francisco Boni alex rubinsteyn clakklaa
      0 replies 1 retweet 2 likes

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