Bob Ditter is a therapist and author who specializes in working with youth and their families. He is a consultant for the American Camping Association and has worked with summer camps since 1982.

The U.S. government report on the first-year impact of four abstinence-only education programs.

A backgrounder on abstinence-only sex education programs. Results, delayed since 2004, were eventually released 2006. The backgrounder is provided by Mathematica, a social policy research firm.

Read a May 17, 2013, article by the Orlando Sentinel about one women’s religious mission trips with youth groups.

The Guttmache Institute seeks to advance sexual and reproductive health through research, policy analysis and public education. Contact Rebecca Wind.

See an October 2008 Barna Group survey about mission trips.

Global Awareness Through Experience offers immersion trips to invite individuals to explore solidarity and compassion through giving. It’s based in La Crosse, Wis.

The United States government’s principal agency for protecting the health of all Americans and providing essential human services.

Orval Gingerich is director of the Center for Global Education at Augsburg College in Minneapolis and has created and led experiential study abroad semesters as part of EMU’s Global Village Curriculum.