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All of these things are controlled for. These are professors whose job it is to make sure you don't have such confounding variables. You even have twin studie
by throwaway337 9y ago
All of these things are controlled for.
These are professors whose job it is to make sure you don't have such confounding variables.
You even have twin studies where one twin was adopted by rich and one by poor parents and it still holds.
- marcelluspye 9y agoSource?
- thraway180306 9y agoWhat about Stoolmiller in Psychol. Bull. 125:392-409 who found families deciding to adopt forming a pointedly restricted range. Being for example exceedingly intelligent with IQ over 120 on average, which is obviously different than general average.