Kinsey Scale

The Kinsey Scale is a methodology of measuring a person on a scale from zero ("exclusively heterosexual") to six ("exclusively homosexual"). The Kinsey Scale was created by sex researcher Alfred Kinsey and his colleagues Wardell Pomeroy and Clyde Martin, who called it the "Heterosexual-Homosexual Rating Scale". The scale was first published in their 1948 book Sexual Behavior in the Human Male. An additional label, "X", represents people with no sexual attraction.

Some people have criticized the Kinsey Scale for a variety of reasons. For one, the scale assumes gender is binary, and additionally, the scale labels mspec people as "partially gay and partially straight" instead of recognizing mspec identities as whole and independent.