A key issue with gender bias is the presence of sexism in psychological research methods. Historically, most researchers were male, and their perspectives shaped the questions asked, the methods used, and the interpretation of findings. This may have led to a biased portrayal of female behaviour, as male researchers might be less likely to investigate topics relevant to women. Furthermore, female participants may be treated differently in studies, reinforcing androcentrism. As a result, psychology as a discipline may have produced theories that do not accurately represent female experiences.