Sexual Preference

"Correlation" usually means a relation existing between phenomena that occur together in a connected way not expected on the basis of chance alone. Is there a correlation between gender and sexual preference?  

Related to this is intersectionality theory, a theory of overlapping social identities, with a focus on systems of oppression. The idea is that each of us represents an intersection of many factors, including age, sex, wealth, race, gender, intelligence, sexual preference, formal education, etc. In theory these multiple layers of social identity interact with one another to produce new forms of meaning. 

A basic axiom is that the intersecting factors impact each other. If you are a young black male and a Harvard graduate, the four things change each other, and differ from what it is to be an old white male and a Harvard graduate. The argument seems to be for complexity and against simplification. I can say that the two males above are Harvard men, but, depending on my purpose, that  may obscure significant, intersecting differences.

With this in mind, some have asked if gender identity and sexual preference are totally separate. If they are totally separate, the correlation between them will be lower than .20 or 20%. Do they occur together more often than chance would indicate?  What percentage of Americans who self-identify as feminine prefer to have sex with those who self-identify as masculine?  

We can look around us. 

For the sake of argument I will guess that 60% of the couples I see form a masculine-feminine pair.  That's just a guess, and it might be more or less. In general a correlation between .70 and .99 is considered a "very strong positive relationship" in psychology. A correlation of .40 is a strong relationship, and .20 is weak. A correlation of 100% in such matters is, I've read, unlikely.