WASHINGTON — Women with advanced degrees in math, science and engineering are more likely than men to be chosen for faculty positions and promotions — when they apply.
Moreover, women perform and are treated at least as well as male colleagues, according to a National Research Council analysis released Tuesday of hiring and promotions in the sciences at 89 U.S. universities.
"Once women are in the pipeline, their opportunities seem to be equitable," said Sally Shaywitz, a learning development professor at Yale University and co-chair of the study.
The study found that women made up 17 percent of applicants to positions in science and engineering fields in 2004 and 2005 but were a quarter of those interviewed and 30 percent of those hired.
Less clear is why so few women apply for faculty jobs or promotions.
"We can only guess what is happening between the period of time when women are graduating and getting their PhDs and when they apply" for academic positions, Shaywitz said.
The study examined how women fared in competition with men for jobs and promotions in the fields of electrical engineering, biology, chemistry, civil engineering, mathematics and physics.
Researchers also assessed their performance and treatment in terms of grants won, laboratory space, publications in journals and professional honors from 2004 through 2005.
The analysis, which took four years, found that male salaries averaged about 8 percent higher for full professors, which researchers said probably reflects the greater seniority of men. Salaries of male and female assistant and associate professors were equal.
Sen. Ron Wyden, D-Ore, commissioned the report in 2002, when he chaired the Senate Subcommittee on Science, Technology and Space. The issue took on serious weight in 2005 when Larry Summers, then Harvard's president, suggested that innate differences between men and women could explain the disparity.
In 2007, according to the Washington-based Association for Women in Science, a quarter of tenured and tenure-track faculty in math, science and engineering were women. For tenured professors, the percentage was 12.5.
Alicia Carriquiry, a professor of statistics at Iowa State University and the primary data analyst, said that finding out why women don't pursue academic positions would take a separate study.
She speculated, however, that biological clocks might be a factor for women.
"The timing is exactly wrong," she said. "By the time they get tenure, they're in their 40s. Women are going through their best reproductive years while they're supposed to be working their tails off."
Claude Canizares, co-chair of the study and a physics professor at the Massachusetts Institute of Technology, said the timing was bad for men as well as women, because years of post-doctoral work are required before they're eligible for tenure-track positions.
"We are making the career less attractive for men and women," he said. "And women have extra concerns with that particular time period."
Analysts found that several factors helped encourage women to apply. When women chaired search committees or made up a large part of their membership, for example, more women applied. Having a mentor, male or female, also increased a woman's chances.
One factor presumed to be important — liberal maternity leave — proved to have no impact.
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