Dude, please post more of this (maybe sources and stuff) its really interesting to read.
Yeah, this stuff is really interesting. I love stats, but it's pretty tough to find good sources for this subject. You need sources that:
1) Control for which factors seem to be correlations and which seem to be causations.
2) Include many factors: from background traits, to personality traits, to behaviors in the relationship itself (otherwise you might end up with thinking a correlation is a causation, because the study didn't include the causative factor).
This is a good example of a study that doesn't have enough factors.
3) Doesn't rely on self-reporting (because, even if you thought their responses are reliable, it doesn't explain
why the reasons they give for divorce happened).
So far I haven't found one good, comprehensive source for that. I've narrowed down one place with a
huge list of correlations that are unfortunately mostly unsourced,
a study that shows financial disagreements rather than financial status synchronizes with divorce, and
here's the study on ethnicities and divorce which again unfortunately doesn't control for other factors so you can't say whether it's cause or correlation with hidden causes. However, other studies seem to find that "exogamous" marriages are more unstable because
"Having a different-origin spouse is linked to difficulties agreeing on common interests and lifestyles (Hibbler and Shinew 2002), and the divergence in cultural values fuels partnership strain (Hohmann-Marriott and Amato 2008), which usually leads to divorce (Zhang and Van Hook 2009)" - but that doesn't explain why the study found white male+black female are
less likely to divorce than two whites, while black male+white female are more likely than w+w. It doesn't explain the variation. Then there are studies that measure the experience of parental divorce on the childrens' own future divorce rate. They find that it's not their experience of divorce itself which causes the higher rates, but rather their experience of parental conflict - and of course, spouses in conflict are more likely to divorce, thus the surface correlation.
You already saw
the source about infidelity in my previous post, which shows how more frequent religious attendance is the one factor that correlates with lower infidelity rates for both genders whereas every other factor seems to be gender dependent. And in self-reports, infidelity is obviously consistently cited among the top reasons for divorce (which as I pointed out above about self-reports, doesn't explain
why infidelity does or doesn't happen in terms of the persons' backgrounds, personality traits, and factors inherent to the relationship itself like financial disagreement and other behaviors).