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QuasLacrimas's profile
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@QuasLacrimas

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@QuasLacrimas

qvi•petere•a•popvlo•fasces•sævasqve•secvres•imbibit•et•semper•victvs•tristisqve•recedit

Joined October 2016

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    1. Eric Weinstein‏Verified account @EricRWeinstein Apr 21

      The reason I detest IQ as our measure of intelligence is that it is pretty good. It would be far better if it was either absolutely amazing or obviously wrong. We can’t afford pretty good. A pretty good metric for cognition which some say is great can be a true social nightmare.

      130 replies 308 retweets 1,872 likes
    2. Eric D. Özkan‏ @ericozkan1 Apr 21
      Replying to @EricRWeinstein

      @charlesmurray Just saying "IQ" trivializes what modern cognitive assessments measure. They're EXTREMELY good at measuring what they are designed to measure: verbal vs. nonverbal ability, working memory, processing speed, crystallized vs. fluid reasoning, the "components" of IQ.pic.twitter.com/NS7L4es2rT

      2 replies 5 retweets 51 likes
    3. Eric Weinstein‏Verified account @EricRWeinstein Apr 21
      Replying to @ericozkan1 @charlesmurray

      Exactly! So...Let’s talk about processing speed (PSI). How many great minds show radically lower scores on processing? How do we get this broken thing the hell away from kids who score high everywhere else. In my language high dispersion —> IQ design failure. As an example.

      7 replies 9 retweets 67 likes
    4. Jason Peirce‏ @jasonmpeirce Apr 21
      Replying to @EricRWeinstein @ericozkan1 @charlesmurray

      Here’s a pic from @rjhaier. Processing speed has a 0.66 correlation with g whereas reasoning has 0.96. A proper intelligence test wouldn’t overlook a great mind with low PS and high reasoning etc.pic.twitter.com/KlRIItqjjO

      2 replies 8 retweets 45 likes
    5. Yash (Яш) Desai‏ @dratsingnadsat Apr 21
      Replying to @jasonmpeirce @EricRWeinstein and

      Honest question: While working memory and processing speed tend to be fixed, reasoning, spatial ability, and vocabulary are all trainable, so why is g thought to be stable over time?

      4 replies 1 retweet 7 likes
      tantum‏ @QuasLacrimas Apr 21
      Replying to @dratsingnadsat @jasonmpeirce and

      do you know what principal component analysis is? or elementary factor analysis? if you trained the subjects (say by drilling vocab) that would show up as a different factor

      6:09 PM - 21 Apr 2018
      • 6 Likes
      • Willie Brown, CFA MBA Marcel Arts Art fletch Eric D. Özkan Yash (Яш) Desai
      3 replies 0 retweets 6 likes
        1. New conversation
        2. Yash (Яш) Desai‏ @dratsingnadsat Apr 21
          Replying to @QuasLacrimas @jasonmpeirce and

          Ah ok, so a psychometrician would control for all those things.

          2 replies 0 retweets 7 likes
        3. tantum‏ @QuasLacrimas Apr 21
          Replying to @dratsingnadsat @jasonmpeirce and

          basically - cuz g isn’t like a sum of lots of different ways of being smart, it’s a factor that explains why they covary to get more specific than that, easiest to read about EFA or PCA to grasp the idea

          0 replies 0 retweets 3 likes
        4. End of conversation
        1. Eric D. Özkan‏ @ericozkan1 Apr 21
          Replying to @QuasLacrimas @jasonmpeirce and

          Beauty!

          0 replies 0 retweets 2 likes
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        1.  ❌Deplorabot Dregs  ❤️ 🇺🇸‏ @buybuydandavis Apr 22
          Replying to @QuasLacrimas @jasonmpeirce and

          Have they tried fitting the population base component data to nonlinear manifolds? I would expect linear PCA to leave some interesting structure on the table

          0 replies 0 retweets 0 likes
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