Richard Dawkins wrote:Several research studies have been
published on the statistical relationship between religiosity and
educational level, or religiosity and IQ. Michael Shermer, in How
We Believe: The Search for God in an Age of Science, describes a
large survey of randomly chosen Americans that he and his
colleague Frank Sulloway carried out. Among their many interesting
results was the discovery that religiosity is indeed negatively
correlated with education (more highly educated people are less
likely to be religious).