The Queen of the Human Sciences | Robert Plomin & Richard Hanania
CSPI Podcast
A Longitudinal Study of Adopted Children
In the seventies, there were a lot of adopted kids because birth control wasn't really available then. So i wanted to get a longitudinal study where we studied kids from birth who are adopted away into adopted families, and then test the birth parents as well. We ended up with som 250 children adopted a way where we tested their birth mothers, sometimes their birth fathers as well. And it turns out that the correlation between the birth parents and these adopted away kids is just as much as the parents who reared their kids. The correlations zero. That's very powerful data, not only showing genetic influence, but also showing that the environment doesn't work the way we thought they did.
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