> Nothing? This is worse than nutrition studies in terms of being able to draw conclusions. This research result doesn't have to prove causality conclusively

> Nothing? This is worse than nutrition studies in terms of being able to draw conclusions. This research result doesn't have to prove causality conclusively to be useful. It is an established fact that higher numbers of premarital partners among women correlate positively with likelihood of their eventually seeking a divorce from their husband. I think it's also been shown that this correlation exists for men as well, though it is not as strong. This correlation is either causal or it is not. That is to say, (1) more premarital partners for women causes divorce odds to shoot up, or (2) women who have tendencies to have more premarital partners have some other quality that causes them to be more likely to get divorced. Either way, good advice for a future husband is to avoid marrying a woman who has a lot of premarital partners (provided he wants to avoid being divorced). The research result is useful for men to think about in spite of its inability to firmly establish causality.