Here’s Tierney in the New York Times:
Similarly, Larry Summers, then president of Harvard, was ostracized in 2005 for wondering publicly whether the preponderance of male professors in some top math and science departments might be due partly to the larger variance in I.Q. scores among men (meaning there are more men at the very high and very low ends). “This was not a permissible hypothesis,” Dr. Haidt said. “It blamed the victims rather than the powerful. The outrage ultimately led to his resignation. We psychologists should have been outraged by the outrage. We should have defended his right to think freely.”
Instead, the taboo against discussing sex differences was reinforced, so universities and the National Science Foundation went on spending tens of millions of dollars on research and programs based on the assumption that female scientists faced discrimination and various forms of unconscious bias.
Here’s a Google Scholar search for “gender differences in cognition.” The first page of results includes the 1995 paper “Magnitude of sex differences in spatial abilities: A meta-analysis and consideration of critical variables,” by Voyer, Voyer, and Bryden, which has been cited 791 times.
Camilla Benbow’s paper “Sex differences in mathematical reasoning ability in intellectually talented preadolescents: Their nature, effects, and possible causes” has been cited over 300 times: the abstract concludes “It is therefore proposed that the sex difference in SAT-M scores among intellectually talented students, which may be related to greater male variability, results from both environmental and biological factors.”
Here’s a selection of papers from the Organization for the Study of Sex Differences, including “Evidence for sex-specific shifting of neural processes underlying learning and memory following stress,” about cognitive differences between men and women under conditions of stress. The OSSD’s 2010 annual meeting was funded by the National Science Foundation.
All I can say is, this is some really crappy taboo enforcement. Politically correct mandarins of academia, get on the stick!