It's actually THE Kinsey Scale. I already knew about this but I used a well known search engine to find this Wikipedia article all about it. Search for it yourself if you want to read the whole thing, which is something the OP really ought to do before making any further idiotic statements.
"Kinsey scale
From Wikipedia, the free encyclopedia
Jump to: navigation, search
Kinsey scale of sexual responses, indicating the varying degrees of bisexuality
The Kinsey scale, also called the Heterosexual-Homosexual Rating Scale,[1] attempts to describe a person's sexual history or episodes of his or her sexual activity at a given time. It uses a scale from 0, meaning exclusively heterosexual, to 6, meaning exclusively homosexual. In both the Male and Female volumes of the Kinsey Reports, an additional grade, listed as "X", was used for asexuality.[2][3] It was first published in Sexual Behavior in the Human Male (1948) by Alfred Kinsey, Wardell Pomeroy and others, and was also prominent in the complementary work Sexual Behavior in the Human Female (1953). Numbers between 1 and 5 indicate bisexuality....."
