To assess the extent that gender disparities exist at the undergraduate level in STEM, we analyzed participation in three large introductory biology classes in Norway, a country with one of the highest ratings of gender equality in the world. Biology 100 is a traditionally taught lecture course for first year students that has one instructor, and employs diverse pedagogical techniques to increase engagement. Biology 102A and 102B are two immersive field courses for second year students; classes often take place in atypical teaching venues both indoors and outside. In Biology 100 and Biology 102B, we discovered that women participate less than would be expected given their numerical dominance, matching results from similar research conducted in the United States. In Biology 102A women participate the amount that would be expected given their numbers, and in no instances did we observe women speaking significantly more than would be expected. We discuss our results in the context of female success in STEM. If gender gaps in participation and performance are mutually reinforcing, educators seeking to promote women should address both factors simultaneously to maximize student achievement. Effective interventions are of critical importance for women in science, and have strong implications for the achievement of equity in STEM disciplines.Keywords: Biology; gender; participation; STEM equity
INTRODUCTIONGender differences in performance and perceptions within STEM continue to be widespread globally, influencing the retention and success of women across disciplines. Increasing evidence suggests social conditioning and 'chilly' classroom environments have a larger influence on women than do traditional biologically-based explanations, which hold little support (1-3). Still others point to 'a lack of enlightened policies' and gender-equal cultures contributing to the gender gap (4-6). In the United States, where the majority of STEM equity research has occurred, women enter STEM fields as undergraduates with lower academic confidence (7, 8), weaker identities as scientists (9-12), and generally, lower numeric representation in the classroom (13,14). At the undergraduate level, measures of success typically include grades and retention within STEM majors. Another measure worthy of attention is in-class participation, because students who participate in lecture exert an influence on their peers, and communicate their understanding of class materials (15,16). Throughout the undergraduate experience, women in STEM are more likely to face subtle bias from their peers and faculty that may have lasting negative impacts on academic performance and measures of active inclass participation (15-17). The outcome is female attrition along the STEM pathway, such that at the faculty level, only one third across geoscience and life science disciplines are women (18). This further disadvantages female undergraduates, who disproportionately benefit by having women in positions of authority within their discipline; female facul...