Doug Kirby, Ph.D., is a Senior Research Scientist at ETR Associates in Scotts Valley, California. For more than 22 years, he has directed state-wide and nation-wide studies of adolescent sexual behavior, abstinence-only programs, sexuality and HIV education programs, school-based clinics, school condom-availability programs, and youth development programs. He co-authored research on the Reducing the Risk, Safer Choices, and Draw the Line curricula, all of which significantly reduced unprotected sex, either by delaying sex, increasing condom use, or increasing contraceptive use. He has painted a more comprehensive and detailed picture of the risk and protective factors associated with adolescent sexual behavior, contraceptive use, and pregnancy, and has identified important common characteristics of effective sexuality education and HIV education programs. Over the years, he has also authored or co-authored more than 100 volumes, articles, and chapters on adolescent sexual behavior and programs designed to change that behavior. These have included reviews of the field for the Centers for Disease Control and Prevention, the National Institutes of Health, the former Office of Technology Assessment, and various foundations.

Dr. Kirby serves on the Board of the National Campaign to Prevent Teen Pregnancy and chairs the National Campaign's Task Force on Effective Programs and Research. He is the author of No Easy Answers: Research Findings on Programs to Reduce Teen Pregnancy (1997).