How sexual orientation effect gender diagnosticity?

Hi all,

when I read Genna's ideas on "when determining gender diagnosticity and therefore our sample should include an equal, or close to equal sample of BOTH males and females", I was wondering does sexual orientation effect the results of gender diagnosticity? That is to say, when compared a butch (a masculine lesbian) with a flamer (gay men who are more femme), is the butch more masculine on both behaviours and thoughts than the flamer? As well as when we compared a femme (a feminine Lesbian) with a butch, or even with a flamer, is the femme much more feminine than butch and flamer? I think when we collect the data and analyze the results, this might be a factor that should be concerned..

In one study, researchers find that tomboy as a gendered social identity can provide masculine-typed behavior in girls and women, and can be a protective Identity (Craig & LaCroix, 2011). In my view, when to determine gender diagnosticity we need also consider the participants sexual oritation and gender identity role in society.

However, is this a limitation of this research, or a further discussed topic related to gender diagnosticity? Any thought or help? Thanks.