By Jim Kavanagh, CNN

People tend to become less religious as they become more educated, right? Not necessarily, according to a new study.

After analyzing data from a large national survey, University of Nebraska-Lincoln sociologist Philip Schwadel found that people actually tend to become more religious - by some definitions, at least - as they further their education.

“It all falls down to what you consider to be religious,” said Schwadel, an assistant professor at the University of Nebraska-Lincoln. “If it’s simply attending religious services, then no. Highly educated people are not less religious; in fact, they’re more religious.”

“But if it’s saying the Bible is the literal word of God and saying that only one religion is the true religion, then they are less religious,” he continued.

Schwadel used data from the highly regarded General Social Survey, a cumulative and nationally representative survey conducted by the National Opinion Research Center at the University of Chicago biannually since 1972.

Social scientists rely heavily on the “gold standard” General Social Survey, which provides cumulative data collected regularly between 1972 and 2010.

His study will be published in an upcoming edition of the journal Review of Religious Research.

Schwadel found that with each additional year of education:

- The likelihood of attending religious services increased 15%.

- The likelihood of reading the Bible at least occasionally increased by 9%.

- The likelihood of switching to a mainline Protestant denomination - Episcopal, Lutheran, Presbyterian USA or United Methodist - increased by 13%.

Respondents to the General Social Survey were asked whether they believe in God without any doubts; with various levels of doubt; whether they have a different concept of God or a higher power; or whether they didn’t believe in any such thing, Schwadel said.

“With more years of education, you aren’t relatively more likely to say, ‘I don’t believe in God,’” he said. “But you are relatively more likely to say, ‘I believe in a higher power.’”

The findings makes sense to D. Michael Lindsay, president of Gordon College in Massachusetts and author of “Faith in the Halls of Power,” about the growing evangelical Christian elite.

“The more educated a person is in their faith, the more cosmopolitan they are in their religious outlook,” he said. “They’re worldly in the very best sense of the term. They rub shoulders with people of different kinds of faiths every day and as a result they have different visions of what it means to express your faith in the public square.”

“They’re more open-minded, but here’s the thing: They’re no less faithful.”

But a leading voice for atheists says the study’s finding about education increasing certain measures of religiosity may be less straightforward than it appears.

“There are plenty of people who go to church who are not believers,” said Ed Buckner, former president of the group American Atheists. “They go for all sorts of reasons. I don’t mean that they’re all frauds and deceptive, (but) they go for social reasons or (because) that’s what’s expected of them by their families or their peers. Sometimes they go so they can sell more insurance.”

“But there are a lot of atheists in the pews, or at least people who are not committed to and probably haven’t even thought about and examined carefully the religious views that are being expressed in that church.”

The finding that highly educated people gravitated toward mainline Christian denominations suggested class dynamics at work, Buckner argued.

As people become more educated, he said, they move into the middle and upper middle class. “And as they do so,” he said, ”they move into more establishment situations regarding the society, which means they join the churches that are the churches of the elite, or at least of the middle class.”

But Schwadel said respondents were discussing their actual beliefs, not just churchgoing habits.

“What it all says to me is that religion matters to people of all education levels in the United States,” he said. “It’s just that, depending on your level of education, you behave and believe differently.”

So why the widespread perception that intellectuals are less religious, even largely irreligious?

Academics are at least moderately less religious than the general public, Schwadel said.

“When we see these trends, we tend to exaggerate them,” he said. “Most people see a trend and they think everyone’s like that.”

Lindsay thinks there’s more to it than that.

“There has been a concentrated effort by a cohort of very smart people who treat religion as the panacea for the simple-minded,” he said.

Bucker disputes that.

“Do we think that anybody who doesn’t agree with us is an idiot or a fool? Well, some of us do think that,” he said of atheists. “But I don’t think it’s systematically true of everybody in the movement.

“… I mean, I do think they’re wrong. Anybody who believes that there is a sky god out there who is going to do anything good or evil for us, basically anyone who thinks the universe cares about us, is making a mistake,” he continued. “In the words of Richard Dawkins, they’ve been deluded.”

But some people’s religious beliefs are “deeply held and carefully considered,” Buckner said. “And I also realize that some atheists’ lack of religious beliefs are pretty superficial and they haven’t thought things through.

“I have a lot more respect for a religious person who has really considered this, thought it through, read some books that disagree with their point of view and still accepts that position than I do for somebody who just unthinkingly rejects any particular point of view.”

Lindsay said the study could help break down some of society’s religious barriers.

“It’s a problem of perceptions because it fuels the idea that there’s some kind of deeply entrenched culture war where smart people are opposed to religious people, when in fact it’s far more complicated than that,” he said. “And in fact, the old divisions between deeply religious and irreligious probably don’t apply.”