Several scales have been devised to categorise sexuality, transition desire and its effects. Here are several.
Alfred Kinsey was one of the 20th century’s most important sex researchers. Kinsey was a biologist and, as such, knew that all biological phenomena exhibit scales of variation. Kinsey’s original scale referenced male homosexuality.
Kinsey’s sexual orientation scale:
0 Exclusively heterosexual with no homosexual experience
1 Predominantly heterosexual, only incidentally homosexual
2 Predominantly heterosexual, but more than incidentally homosexual
3 Equally heterosexual and homosexual
4 Predominantly homosexual, but more than incidentally heterosexual
5 Predominantly homosexual, but incidentally heterosexual
6 Exclusively homosexual, with no heterosexual experience