WASHINGTON (AP) -- Students who took part in sexual abstinence programs were just as likely to have sex as those who did not, according to a study ordered by Congress.

"This study began when [the programs] were still in their infancy," said Valerie Huber, executive director of the National Abstinence Education Association. "The field of abstinence has significantly grown and evolved since that time, and the results demonstrated in the Mathematica study are not representative of the abstinence education community as a whole."