The Klein Sexual Orientation Grid

A brief explanation

The Klein Sexual Orientation Grid is shown in the table below. For each person, it sets out the seven component variables of sexual orientation, listed as A through G down the left side. The three columns indicate three different points at which sexual orientation is assessed: the person's past, their present, and their ideal. The person then receives a rating from 1 to 7 for each of the 21 resulting combinations, one rating for each empty box in the chart below. The meanings of the ratings are indicated just below the grid itself.

For variables A to E:
1 = Other sex only
2 = Other sex mostly
3 = Other sex somewhat more
4 = Both sexes
5 = Same sex somewhat more
6 = Same sex mostly
7 = Same sex only
For variables F and G:
1 = Heterosexual only
2 = Heterosexual mostly
3 = Heterosexual somewhat more
4 = Hetero/Gay-Lesbian equally
5 = Gay/Lesbian somewhat more
6 = Gay/Lesbian mostly
7 = Gay/Lesbian only