Fewer women speakers because fewer women invited

Nittrouer and her team scanned the websites of the top 50 U.S. universities, as ranked by U.S. News, to build a database of every colloquium speaker from six departments: biology, bioengineering, political science, history, psychology, and sociology. They chose those six to represent a breadth of disciplines, and to exclude departments with either a very low or very high proportion of women. And they found that men gave more than twice as many talks as women: 69 percent versus 31 percent