[abruzzi]

I've never tried the questionnaires on dating sites, but it seems you'd get better results with paired questions. Ask person A what they're looking for in attribute X. Ask person B to describe themselves in attribute X. So someone that is emotionally submissive that likes a partner that is emotionally dominant gets matched with someone that is emotionally dominant that prefers a partner that is emotionally submissive.

Of course that assumes that the person even consciously knows what they want. I don't know how true that is.