The identical twin sisters were separated at the age of two and grew up in different households but their similarities and differences are remarkable.
    • JasSmith@sh.itjust.worksEnglish
      71·
      2 months ago

      Why wouldn’t it be? It is the single most research metric in all of sociology. We have more evidence for the existence of the g factor (and its causal and correlative effects) than any other phenomenon in that entire school of science.

      Don’t confuse the criticism of measurement tools with the premise that g doesn’t exist.

      • Nosavingthrow@lemmy.worldEnglish
        161·
        2 months ago

        It’s not canceled. It’s just not an accurate reflection of inherent overall intelligence but, instead, a measurement of very specific mental skills.

        • Ogmios@sh.itjust.worksEnglish
          71·
          1 month ago

          It’s a test of pattern recognition. The difficulties come from trying to apply similar measurements between disparate populations, as the questions themselves tend to rely upon common understandings of the world. You can measure two people from two different cultures with two different tests, but then it’s more difficult to claim that the resulting scores are comparable. As long as people understand that it’s a rough approximation rather than something akin to video game stats, it’s quite useful.

          • BussyCat@lemmy.worldEnglish
            2·
            2 months ago

            Even video game stats have the same problems though, your W/L ratio in free for all should be a lot lower than in team deathmatch, or if you are playing a support class it’s expected you get less kills per game so comparing a support player vs a fragger will get you errors but if you control for as many variables as possible then IQ can be a not complete shit variable

    • yeahiknow3@lemmings.worldEnglish
      31·
      1 month ago

      Americans are so weird about IQ. Yes, indeed, some brains work better than others — by avoiding lead poisoning or traumatic brain injuries, for instance, and by reading books, pursuing higher education, and enjoying a fulfilling social environment.

      • prole@lemmy.blahaj.zoneEnglish
        62·
        2 months ago

        You can always tell which people took an “IQ test” (most of them probably even just did some bullshit online thing and not even a real one) and have nothing else going for them but a number that they think tells people they’re smart.

        • rottingleaf@lemmy.worldEnglish
          12·
          2 months ago

          Yeah, about online tests, I’ve taken it twice in the olden days, once I got a result (probably due to connection problems) fitting a rock, and once I got something egghead high (probably due to the same).

          And I’ve never met people mentioning their IQ test results as an argument other than what you said.

  • JasSmith@sh.itjust.worksEnglish
    20·
    2 months ago

    while the other faced hardships with her adoptive family and parents

    Does anyone have more info? Abuse, neglect, and malnutrition are proven to reduce IQ. So are the concussions referenced in the article. I would be dubious to make any statements on the back of a single case like this. This is not even outside the realm of possibility of twin IQ variance - albeit unlikely.

  • Null User Object@lemmy.worldEnglish
    181·
    2 months ago

    The sister raised in the US had an IQ 16 points lower than her sibling in Korea. Previous studies revealed that identical twins typically have no more than a 7-point IQ difference, making this case astounding.

  • ZombiFrancis@sh.itjust.worksEnglish
    171·
    2 months ago

    I have children. The amount of trauma a two year old would experience losing their family, being transported to a foreign country and adopted by different people would be traumaticintense as hell.

    A two year old is not a newborn. That’s their entire world blowing up.

    • Victor@lemmy.worldEnglish
      1·
      1 month ago

      Luckily it’s very local, time wise. I don’t remember a thing from like 5 and earlier.

  • x4740N@lemm.eeEnglish
    2·
    1 month ago

    With america being the shitshow that it is I am not surprised

    I do hope she could move back and get the support of the family in South Korea because she shouldn’t have to live in that sithole anymore

  • ⓝⓞ🅞🅝🅔@lemmy.caEnglish
    0·
    1 month ago

    This website’s use of stock images and gifs were aggravating. The actual case study was worth the read, but only covers a single pair of individuals: https://www.sciencedirect.com/science/article/pii/S0191886922001477

    It’s certainly interesting. I’m particularly curious about the effects of the multiple confusions:

    US had three concussions as an adult, caused by car accidents and from falling on ice. The most recent and severe incident occurred in January 2018, resulting in classic symptoms of light sensitivity and concentration difficulty. US feels she is a “different person,” with increased anger and anxiety. She requires additional time to process information in some problem-solving situations, although she has always seen herself as a poor test taker.

    Some of the conclusions seemed a stretch for a single sample. I’m much more curious about more extensive studies with many more subjects.