Self-placement measures of masculinity and femininity have been gaining popularity in political science research, but questions remain about their long-term stability and the extent to which political views may impact gender identities. Taking advantage of two waves of measures of masculinity and femininity self-placement in an online panel, a categorical measure of masculinity and femininity (making use of a six-point scale, anchored scale) is found to be both highly stable and more stable than a scalar measure (making use of a 0 to 100 scale). The scalar measure is also found to be responsive to political views, such that men who report support for Donald Trump in the US Presidential elections identify as more masculine in the follow-up study. Overall, both measures are found to be relatively stable, bolstering the case that they are measuring a stable underlying construct.
