On gender-related interests, a study by Richard Lippa found that trans people scored in between cis men and women for gender-related traits (i.e. GD, or "gender diagnosticity" of interests or occupational preferences).

In general, these contrasts show that M-to-F transsexuals scored similarly to gay men on all measures except for self-ascribed femininity, which was considerably higher for transsexuals. In contrast, F-to-M transsexuals were significantly more masculine than lesbian women on all measures except for instrumentality and expressiveness.