Thanks for submitting this. This is a much-needed response to a story that had IMMENSE uptake from news sources all over the world. I'll recycle some electrons here from a rather quiet recent thread discussing another response to Gerald Crabtree's claims

http://www.popsci.com/science/article/2012-11/are-people-get...

that wasn't part of the first wave of gee-whiz stories based on Crabtree's press release, but which actually interviewed other knowledgeable experts to provide perspective on the claims. Reading the Popular Science article "Are People Getting Dumber? One Geneticist Thinks So" linked above, originally submitted to Hacker News by user omnisci

http://news.ycombinator.com/item?id=4811697

and reading the article kindly submitted here by vectorbunny helps to clear up some of the misconceptions sparked by the many articles based on Crabtree's press release.

What I've noticed about this widely covered story is that Crabtree has certainly mastered the Science News Cycle

http://www.phdcomics.com/comics/archive.php?comicid=1174

by making a press release that has had uptake from dozens of news outlets. But none of those news outlets seem to have reporters on staff who are competent to judge the genetics issues involved, or who even know sources in the Behavior Genetics Association. (The article kindly submitted here has better sourcing and analysis than most of the previous articles based on the same press release that I have seen, as author Rob Brooks has actual expertise in the subject, and took care to think through Crabtree's arguments before rushing to print.)

I had earlier shared links to some of the first stories on this issue with friends in the Behavior Genetics Association (I'm part of the Facebook group for the association). Gerald Crabtree has some interesting institutional affiliations and previous accomplishments,

http://www.hhmi.org/research/investigators/crabtree_bio.html

but he is not leading researcher on the genetics of human intelligence. One of the Behavior Genetics Association scientists commented, "I don't know why Crabtree is wasting his time writing about this when he can do such great scientific work."

I have met most of the researchers who are currently active in research on the genetics of human intelligence at a meeting of the International Society of Intelligence Research and at events sponsored by researchers in the Minnesota Twin Families Study in my town. They don't take Crabtree's approach to these sensitive issues.

Another comment already posted here mentions the writings of James R. Flynn. Readers interested in more detail about historical trends in human intelligence are well advised to read James R. Flynn's new book Are We Getting Smarter? Flynn's book deals with much more recent times (just the last century) but has the advantage of being based on actual IQ tests.

http://www.amazon.com/dp/1107609178

http://www.cambridge.org/us/knowledge/isbn/item6835805/Are%2...

http://online.wsj.com/article/SB1000087239639044403240457800...

http://www.guardian.co.uk/books/2012/sep/28/are-we-getting-s...

Flynn is very well respected among behavior geneticists as a "truth-seeker" for his careful research work.