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The big picture: Girls perform well but don't end up in STEM careers

School children using a tablet
School children using a tablet. Photo: Bertrand Langlois/AFP via Getty Images

Fewer women than men are pursuing careers in science, technology, engineering and mathematics (STEM) despite higher average grades and lower variation in performance while in school, according to a study published this week in Nature Communications.

The big picture: Girls are just as likely as boys to have earned high enough grades to pursue a career in a STEM field, but because of gender stereotypes and high performance in other non-STEM subjects, women can be systematically driven away from STEM careers.

Methodology: Researchers extracted data from 227 studies examining 1.6 million students — 820,158 female and 826,629 male — and examined their overall grades, performance in STEM subjects and performance in non-STEM subjects.

By the numbers: Sexes were more similar in performance in STEM subjects than non-STEM subjects with girls holding a 3.1% higher average grade in such subjects than boys.

  • Girls also dominated boys in non-STEM subjects with a 7.8% advantage in their average grades.
  • However, boys were typically at the very top of the class and performed with more variance, meaning there is an over-representation of males in these classes leading to a broader scale of performance in grades and scores.
  • Despite their comparable performance, girls still tend to gravitate toward non-STEM career paths with women representing just 24% of STEM industry.

Be smart: "If girls perceive they have fewer competitors in non-STEM subjects because, on average, fewer boys perform better than girls, this might lead to a preference for non-STEM over STEM careers," the study states.

Between the lines: Gender stereotypes are at play here. Differences in expectations exist for boys and girls largely due to the cultures they grow up in, the study found.

"Social pressures" make it difficult for individuals to break gender stereotypes, says Rose O'Dea, a study co-author and doctoral candidate at the University of New South Wales in Sydney.

  • She calls it the "backlash effect," where both men and women are expected to play certain roles in certain career paths. When they deviate from these, they face a backlash from their peers.
  • Women in male-dominated fields tend to have to make a choice, the study notes: Either conform to gender stereotypes and be perceived as less competent, or defy gender stereotypes and face a backlash from both men and women for exceeding expectations.

Yes, but: STEM, as a category of fields, has long had diversity issues. Men are generally hired at a much higher rate than women, as noted in a 2012 OECD Economic Study.

The bottom line: To increase the presence of women in STEM, the path must come with less social barriers and more acceptance, the authors say.