The report sparked an immediate, bitter debate over the wisdom of teaching premarital abstinence.
Deborah Roffman, an educator and author of "Sex and Sensibility: The Thinking Parent's Guide to Talking Sense About Sex," said youths who take virginity pledges are often undereducated about sexual health. "Kids who are engaging in oral sex or anal sex will tell you they are practicing abstinence because they haven't had 'real sex' yet," she said.
Ralph DiClemente, a professor at Emory University's School of Public Health in Atlanta, compared virginity pledges to adults' efforts to make New Year's resolutions.
"I wish it was that easy. We'd all be a lot healthier," he said. "If we can't do it as adults, why would we expect kids to be able to handle those issues?"
But Joe S. McIlhaney Jr., chairman of the Medical Institute for Sexual Health, said the study offers an incomplete picture because it could not say whether sexually active teens who did not take a pledge had been pregnant or treated for an STD before the 2002 testing. The analysis "doesn't prove or disprove" assertions that virginity pledges are flawed, he said.
"Not only do virginity pledges not work to keep our young people safe, they are causing harm by undermining condom use, contraception and medical treatment," said Bill Smith, public policy vice president for the Sexuality Information and Education Council of the United States.
Conservative academics said the paper overlooked earlier important findings about adolescents who take virginity pledges, most notably that they have fewer pregnancies and out-of-wedlock births.
"It's hugely successful on those variables," Rector said. "Bearman has focused in on the one variable he thinks can show they [pledgers] don't do better."
President Bush has requested $206 million in federal funding for abstinence-only programs this year.
Several True Love Waits officials were unavailable Friday, according to a receptionist. Telephone calls to another virginity group, the Silver Ring Thing, were not returned.