Path: utzoo!attcan!uunet!cs.utexas.edu!csd4.csd.uwm.edu!mailrus!purdue!mentor.cc.purdue.edu!l.cc.purdue.edu!cik From: cik@l.cc.purdue.edu (Herman Rubin) Newsgroups: comp.ai Subject: Re: Genetics and IQ Summary: It can be read the other way. Message-ID: <1521@l.cc.purdue.edu> Date: 20 Aug 89 18:26:30 GMT References: <16369@pasteur.Berkeley.EDU> Organization: Purdue University Statistics Department Lines: 31 In article , ghh@clarity.princeton.edu (Gilbert Harman) writes: > In article <16369@pasteur.Berkeley.EDU> > ahmad@icsib6.Berkeley.EDU (Subutai Ahmad) writes: < >> The morning news today reported a study conducted by the < >> University of Minnesota. The study concerned the relationship < >> between IQ score and the environment/genetics. The results < >> reported were: < >> 1) Children adopted by well to do parents tended < >> to score higher on the IQ test than children < >> adopted by less well to do parents. < >> 2) Adopted children whose real parents were well < >> off did better than adopted children whose real < >> parents weren't well off. < >> 3) Adopted children whose real parents were well < >> off and whose foster parents were well off < >> performed the best overall. > > If there is a correlation between having well off real > parents and well off adopted parents, then (1) could account > for (2) and (3). Has this factor been taken into account? The article in my paper had the effect in 2) greater than that in 1). Any substantial correlation would make the environmental effect low. I have not seen the raw data, but from my professional standpoint, it looks much better for heredity than environment from what was in the article. It also looks like the study was not very well done. -- Herman Rubin, Dept. of Statistics, Purdue Univ., West Lafayette IN47907 Phone: (317)494-6054 hrubin@l.cc.purdue.edu (Internet, bitnet, UUCP)