Designing for Cognitive Diversity: Improving the GitHub Experience for Newcomers

Social coding platforms such as GitHub allows software developers to work collaboratively. However, if such platforms do not support specific cognitive styles, they disproportionately impact newcomers with these styles, especially those from underrepresented groups such as women. Research shows that the cognitive styles that are common to underrepresented communities are often unsupported, creating an additional barrier to entry for these communities. In this paper, we use the GenderMag method to evaluate GitHub to find cognitive style-specific usability bugs. We redesigned the ``buggy'' GitHub features through a web browser plugin, which we evaluated through a between-subjects experiment (n=75). Our results indicate that the changes to the interface result in an improvement in the performance and self-efficacy of users, mainly for individuals with cognitive styles that are more common to women. Designers of social coding platforms and software engineering tools can use our results to design more inclusive development environments.