When people logon to a dating site, whether it is UK.Cupid.com or Match.com, what determines who ends up with who? Although there are a myriad of factors that lead individuals to form romantic attachments, a longstanding theory in relationship science makes a simple prediction. Specifically, the matching hypothesis predicts that people will pair up with a partner who has the same social mate value.1 Your social mate value includes all of the factors that go into making you more or less desirable to date such as your physical attractiveness, your personality, etc. Essentially, according to the matching hypothesis, if you’re in London dating and are a “7” out of 10 in terms of mate value you’ll end up with another “7,” or very close. “10’s” go with “10’s,” “2’s” with “2’s” and so on.
Perhaps due to the matching hypothesis’s intuitive appeal, the field of social psychology has largely accepted it as true, despite a general lack of empirical support. To address this gap between theory and data, researchers from the University of California – Berkeley tested the matching hypothesis across several studies.