SF CHRONICLE - Mar 4 - There is no evidence that dating sites do anything much more than increase the pool of potential partners", said Eli Finkel, a psychologist at Northwestern University who studies relationships. Or, as Stanford sociologist Michael Rosenfeld put it, “The algorithms for matching at dating sites are mostly smoke and mirrors.” eHarmony was founded by a clinical psychologist who felt most marriages that ended involved people whose personalities were too different. A research has found both similarity and complementarity have little impact on relationship quality at all. And people are terrible at figuring out what they actually want in the first place. Finkel and his colleagues also issued a challenge to dating sites: Submit their algorithms to clinical review. “No one was interested in working with us,” said Finkel.