1. , , , . Evaluation of the DC Opportunity Scholarship Program: First Year Report on Participation. U.S. Department of Education, National Center for Education Evaluation and Regional Assistance. Washington, DC: U.S. Government Printing Office, 2005. Retrieved 1 May 2006, from http://www.ed.gov/rschstat/eval/choice/dcchoice-yearone/index.html
2. U.S. Department of Education, Office of the Under Secretary, Policy and Program Studies Service. National Evaluation of GEAR UP: A Summary of the First Two Years. U.S. Department of Education: Washington, DC, 2002. Retrieved 1 May 2006, from http://www.ed.gov/rschstat/eval/highered/gearup.html
3. Evaluation of the American Stop Smoking Intervention Study (ASSIST): A Report of Outcomes
4. , , , , , , , , , , , , . Evaluation of the National Youth Anti-Drug Media Campaign: 2003 Report of Findings. Report prepared for the National Institute on Drug Abuse (Contract No. N01DA-8-5063). Retrieved 1 May 2006, from http://www.nida.nih.gov/despr/westat/#reports
5. (ed). Public Health Communication. Lawrence Erlbaum: Mahwah, NJ, 2002.