11. Young, Dustin and Holtzman, 1966Average religiosity decreased as GPA rose.12. James Trent, 1967Polled 1400 college seniors. Found little difference, but high-ability students in his sample group were over-represented.13. C. Plant and E. Minium, 1967The more intelligent students were less religious, both before entering college and after 2 years of college.