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I think the issue is that number 5 is not true, at least not in a direct way. Look at any family of 3+ siblings. Intelligence tends to vary significantly desp
by refurb 3y ago
I think the issue is that number 5 is not true, at least not in a direct way.
Look at any family of 3+ siblings. Intelligence tends to vary significantly despite having the same parents.
- RajT88 3y agoAnecdata, but yes, I am not the smartest sibling in my family, but one of the wealthier ones. The "dumbest" one is potentially the wealthiest. The smartest one (hands down) is the least wealthy. This is besides the point though. Anecdata doesn't get at what happens on average, and that's what his post is about.
- refurb 3y ago> Anecdata doesn't get at what happens on average, and that's what his post is about. From what I've read, the inheritability of intelligence has a 0.50 correlation. That's not fantastic.
- skrebbel 3y agoThis is the Simpson paradox in action. It’s possible for smart parents to get less smart kids, or to observe a wide variation in smartness among siblings, but neither of those say anything about whether on average, smarter parents get smarter kids.
- Workaccount2 3y agoGenetics is a grab bag of traits. A whole bunch of marbles mixed around in a bag. What I am speaking to is the types of marbles and their prevalence in a given bag. Not what is actually chosen in any given drawing. A better phrasing would be "Kids who draw from bags with higher than average amounts of green marbles, are more likely to end up with green marbles in their bag"