Source: Washington Post, 6-4-10
…According to the General Social Survey, 15 percent of U.S. households were mixed-faith in 1988. That number rose to 25 percent by 2006, and the increase shows no signs of slowing. The American Religious Identification Survey of 2001 reported that 27 percent of Jews, 23 percent of Catholics, 39 percent of Buddhists, 18 percent of Baptists, 21 percent of Muslims and 12 percent of Mormons were then married to a spouse with a different religious identification. If you want to see what the future holds, note this: Less than a quarter of the 18- to 23-year-old respondents in the National Study of Youth and Religion think it’s important to marry someone of the same faith.
In some ways, more interfaith marriage is good for civic life. Such unions bring extended families from diverse backgrounds into close contact. There is nothing like marriage between different groups to make society more integrated and more tolerant. As recent research by Harvard professor Robert Putnam has shown, the more Americans get to know people of other faiths, the more they seem to like them.
But the effects on the marriages themselves can be tragic — it is an open secret among academics that tsk-tsking grandmothers may be right. According to calculations based on the American Religious Identification Survey of 2001, people who had been in mixed-religion marriages were three times more likely to be divorced or separated than those who were in same-religion marriages.
In a paper published in 1993, Evelyn Lehrer, a professor of economics at the University of Illinois at Chicago, found that if members of two mainline Christian denominations marry, they have a one in five chance of being divorced in five years. A Catholic and a member of an evangelical denomination have a one in three chance. And a Jew and a Christian who marry have a greater than 40 percent chance of being divorced in five years.
More recent research concludes that even differing degrees of religious belief and observance can cause trouble. For instance, in a 2009 paper, scholars Margaret Vaaler, Christopher Ellison and Daniel Powers of the University of Texas at Austin found higher rates of divorce when a husband attends religious services more frequently than his wife, as well as when a wife is more theologically conservative than her husband…. READ MORE