How do they determine sexual orientation in actual studies?

Kevin: How do they determine sexual orientation in actual studies?
Is sexual orientation determined any differently in a actual study than in a anecdote? From what I’m aware of, they only ask the person being tested what’s their sexual orientation and go off that but do studies take outside variables into account? Please give me a source/link or study that proves to me.

Answers and Views:

Answer by Mr Horton
People are retards. People can turn straight they don’t want too because they’re lazy punks.

Answer by HELLin
the basic determination can be made:

by a hand down the pants !

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Answer by wolverine4life
Nobody’s going to do the work for you (unless they need a life). If you want a link to an actual study, you need to get on a search engine and find it yourself.

Having studied psychology and sexuality & society, I know that they pretty much just ask what your orientation is.