Robert Rector is a senior research fellow for domestic policy studies at the Heritage Foundation. He says abstinence is the only solution to teen pregnancy.

John C. Blakeman is associate professor of political science at the University of Wisconsin-Stevens Point. His publications include “The Religious Geography of Religious Expression: Local Governments, Courts and the First Amendment,” published in 2006 in the Journal of Church and State.

President and founder of the nonprofit Institute for Youth Development, which promotes a risk avoidance message that includes sexual abstinence.

William G. Ross is a law professor at Samford University in Birmingham, Ala. He has written on religion, law and education. He is an expert of judicial ethics, and his work on judicial ethics has been sighted in several federal court decisions.

Offers research and more at its Web site. Valerie Huber is executive director.

Kent Greenawalt is a professor at Columbia Law School in New York City. He is the author of publications on church and state issues. He is the author of Religious Conviction and Political Choice (1991).

Bernard Schlager is executive director of the Center for Lesbian and Gay Studies in Religion and Ministry, described as “the only Center for LBGTQ issues and religion established by a seminary or school of religion in the world.” Affiliated with the Pacific School of Religion in Berkeley, Calif., it has held conferences for LGBT religious leaders.

An obstetrician/gynecologist, is founder and chairman of the nonprofit Medical Institute for Sexual Health, which worked on pro-abstinence programs with the Bush administration and faith-based groups.

W. George Scarlett is assistant professor of child development at Tufts University in Medford, Mass. He was an editor of the Encyclopedia of Spiritual Development in Childhood and Adolescence.