College campuses are among the least religious places in America, largely because people tend to drift away from faith when they are young. But a study focusing on 18-to-24-year-old Americans finds many rejecting religious doctrine and orthodoxy in general.

Findings of the Millennial Values Survey, a joint survey of the Public Religion Research Institute (PRRI), and Georgetown University's Berkley Center for Religion, Peace & World Affairs, indicate that many of the youngest millennials - members of the so called "millennial generation" - are leaving their childhood faith and ending up mostly unaffiliated. Around one quarter of respondents said they don't identify with any religion, more than twice the 11 percent raised in households without any particular faith.

According to Dr. Robert Jones, PRRI's CEO and one of the study's lead researchers, this group is changing the way Americans view and practice religion. "Basically all the varieties of Christian religion are in negative territories," said Jones, adding that Catholics and white mainline Protestants saw the largest losses away from childhood religious identification.

"In my own personal experience dealing with other millennials my age, there's a lot of those kinds of stories of 'Well, I was raised like this, but I am now this, or I'm not religious at all,'" she said. "There's a lot of shifting, and people don't tend to be as committed to one strict set of doctrines or dogmas, even if they might be spiritual still."

Clauhs, a religion major at Boston University, was raised by a southern Baptist father and a Roman Catholic mother. "I actually identify as Unitarian Universalist now," she said, explaining with a chuckle that "you're allowed to believe what you want."

Only 23 percent of the survey's respondents said they believe the Bible is the word of God and should be taken literally. And while 76 percent agreed with the statement that Christianity "has good values and principals," more than six in ten said the way the faith is practiced today is "judgmental" and "anti-gay."

But Jones said results do suggest millennials are seeking spirituality, albeit with less commitment than "the traditional structured church experience."