The Heterosexual-Homosexual Rating Scale, sometimes referred to as the Kinsey Scale, was developed by Alfred Kinsey and his colleagues Wardell Pomeroy and Clyde Martin in 1948, in order to account for research findings that showed people did not fit into neat and exclusive heterosexual or homosexual categories.
“Either you’re bisexual or you’re not.
You can’t have it both ways. ” – Jarod Kintz
Interviewing people about their sexual histories, the Kinsey team found that, for many people, sexual behaviour, thoughts and feelings towards the same or opposite sex was not always consistent across time. Though the majority of men and women reported being exclusively heterosexual, and a percentage reported exclusively homosexual behaviour and attractions, many individuals disclosed behaviours or thoughts somewhere in between.
In several publications, Kinsey et al. wrote: ‘Males do not represent two discrete populations, heterosexual and homosexual. The world is not to be divided into sheep and goats. […] The living world is a continuum in each and every one of its aspects. […] A seven-point scale comes nearer to showing the many gradations that actually exist.’
0. Exclusively heterosexual with no homosexual
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, only incidentally heterosexual
6. Exclusively homosexual