Religious Students Have Fewer Interracial Friendships
Using data from the National Longitudinal Study of Freshmen (NLSF), Julie Park, an educationalist at the University of Maryland, has investigated how inter-racial friendships and religious affiliation interact. The NLSF was an annual survey of White, Black, Latino, and Asian American students from 28 selective institutions that ran from 1999 to 2004.
During their fourth year of college, students were asked to think of the four people at [your college] with whom you have been closest during your college years. They were also asked to list the race/ethnicity of each of the friends. What she found was that the most religious students (based on self-reported religiosity, their frequency of religious service attendance, and their religious observance) also had the fewest friends from other races. Whats more, Protestant or Jewish (but not Muslim, Hindu or Buddhist) students also had the fewest mixed-race friendships. Thats probably because these are the two major religious groups.
These two effects were independent so the most mono-cultural people were the most religious Protestants and Jews. This held even after controlling for a bunch of other factors, including the racial diversity of the college, the diversity of their previous school, and the race of the student. And on top of all this, belonging to a religious club reduced the chances of inter-racial friendship still further! That wasnt the case with other clubs (except explicitly ethnic clubs and even here the effect was smaller than for religious clubs).
Now, the interesting thing about these three factors religiosity, religious denomination, and membership of a religious club isnt that they werent highly correlated. That means that they seem to have independent, additive effects. Park concludes that:
While all of these dimensions certainly overlap and are difficult to disentangle, there are likely distinct facets of each one that may contribute to a student being less likely to form close interracial friendships during college
It appears that there is no single reason why religion appears to lower the probability of interracial friendship during college, but a combination of affiliation, involvement, and specific involvement in religious peer environments lowers the likelihood of close interracial friendship.
http://www.secularnewsdaily.com/2012/03/29/religious-students-have-fewer-interracial-friendships/