Quote:
Originally Posted by MattyC
But there would be no way to determine if there was differences because of the situation or because of biology unless the people were twins seperated at birth (which would be a pretty cruel social experiment).
For example: My father played in the NHL, I was raised by both him and my mom until the age of 16 when I moved in with my dad. Now, had I been adopted by a gay couple at birth, maybe I would have been less inclined to join hockey, or to be athletic in general. Maybe. Or is that stuff part of my genetic code and would I be predesposed to that type of behaviour?
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I'm talking about a large sample, not an individual person, where I agree there are to many factors at play. For example, say you were trying to determine whether children of divorced or married couples are more likely get good grades. Some kids from both groups will have good and bad grades, because some of them are biologically more intelligent or motivated than others, and some will have better teachers, etc.
But in a large, correctly chosen sample of thousands of people in each group, those differences should cancel out as there will be some of each type of kids in each group.