I think you’re essentially right, but just out of curiosity, what are the ‘twin-adoption studies’ he refers to? As far as I know, there are really very few twins where one twin has grown up entirely separate from the other.
Yes, separated twins are rare. But twins and adoption by themselves are common and can be studied separately. Either one alone can separate nature from nurture. And they both show the same result: 50% genetics, 0% parenting.
Either one alone can separate nature from nurture.
In what way? As knb mentioned above, parenting has a direct effect on e.g. what language you learn. On the other hand, parenting has zero effect on, for example, the color of your eyes. So you have to first specify what variables you’re looking at.
And they both show the same result: 50% genetics, 0% parenting.
I hope you realize that this is an extremely strong claim.
I think you’re essentially right, but just out of curiosity, what are the ‘twin-adoption studies’ he refers to? As far as I know, there are really very few twins where one twin has grown up entirely separate from the other.
Yes, separated twins are rare. But twins and adoption by themselves are common and can be studied separately. Either one alone can separate nature from nurture. And they both show the same result: 50% genetics, 0% parenting.
In what way? As knb mentioned above, parenting has a direct effect on e.g. what language you learn. On the other hand, parenting has zero effect on, for example, the color of your eyes. So you have to first specify what variables you’re looking at.
I hope you realize that this is an extremely strong claim.
I’m not sure, I just took his word on it. I’ll ask him in the morning and edit it in later