Does religiosity predict divorce vs. staying together?
Religious affiliation alone does not predict religiosity. A better
predictor than religious affiliation for marital stability may be
religiosity indications such as church attendance and religious beliefs.
 is a National Review article arguing that Conservative
Protestants still get divorced at high rates and that many of them don’t
attend church. Argues that church attendance matters more for divorce
rates than does church affiliation. “Vaughn Call and Tim Heaton of
Brigham Young University reported that, compared to other religious
elements such as affiliation or strength of beliefs, ”attendance has the
greatest impact on marital stability.” Couples who attend church
together weekly have a lower risk of divorce than those who worship less
frequently.”11Vaughn R. A. Call and Tim B. Heaton, ”Religious
Influence on Marital Stability,” Journal for the Scientific Study of
Religion, vol. 36 (1997): 382-392. “John Wilson and Marc Musick of
Duke University also found that ”the higher the level of involvement in
the social life of the church, the more [a couple’s] marriage is
valued.”22John Wilson and Marc Musick, ”Religion and Marital
Dependency,” Journal for the Scientific Study of Religion, vol. 35
A Pew Research Study  found that of those who had been divorced
or separated in the US [confirm], 69 percent are absolutely certain
they believe in God and another 18 percent are fairly certain. 57
percent said religion is “Very Important” while 24 percent said it was
“Somewhat Important.” Among those who were divorced or separated, 32
percent attend religious services at least once a week, and 61 percent
pray at least daily.
“Matthew Bramlett and William Mosher of the Centers for Disease Control
and Prevention found that ”women whose religion is somewhat or very
important are…less likely to experience a breakup of their first
marriage than those whose religion is not important””33Matthew
D. Bramlett and William D. Mosher, ”Cohabitation, Marriage, Divorce,
and Remarriage in the United States,” Vital and Health Statistics,
series 22 (2002): 1-32.
A study of 15,714 (British?) adults found that “Frequent Christian
attendees were 1.5 times less likely to suffer marital breakdown than
nonaffiliates, but there was no difference between nonattending
Christian affiliates and those of no religion. Infrequent Christian
attendees were 1.3 times less likely to suffer marital breakdown
compared to nonaffiliates, suggesting that even infrequent church
attendance might have some significance for predicting the persistence
of marital solidarity” .
Religious participation can promote marital stability -  studied
the association between church service attendance and divorce and
separation among a large cohort of female nurses in the US. Frequent
service attendance was associated with a 50% lower risk of divorce.
A 2014 study  examines religion’s affect on marital quality by
focusing on the influence of religion on the marriage decision rather
than religion’s influence within marriage. The influence of spouse’s
religiosity on marital quality. Positive association!
[26 - check out conclusion] studies the parallel positive affects of
religion and marriage separately, and considers the intersection between
marriage and religion.
 found four specific themes related to how religion,
spirituality, and belief in God influence the divorce decision-making
“Staying married is the right thing to do.”
The dilemma of religious beliefs.
Religious social network.
Religiosity may not predict greater marital stability across all races:
a Brad Wilcox book  found that regular church attendance
substantially reduced divorce rates for whites, but not for African
Americans or Latinos. Many factors contribute to this, including
emphasis placed by pastors, frequency of church attendance, etc.
 looked at the timing of religious attendance and divorce to
account for the fact that those who are contemplating divorce may be
more likely to attend services less. Controlling for this possibility,
they still found that those who attended religious services were 47
percent less likely to subsequently divorce.
Some claim that religiosity is not a good indicator of marital
stability: Some , in a longitudinal study from 1971 to 2005, have
found that religion is not a good predictor of divorce (but that
education and finances might be better predictors).