Trenholm Christopher, Devaney Barbara, Fortson Kenneth, Clark Melissa, Bridgespan Lisa Quay, Wheeler Justin
Mathematica Policy Research, USA.
J Policy Anal Manage. 2008 Spring;27(2):255-76. doi: 10.1002/pam.20324.
This paper examines the impacts of four abstinence-only education programs on adolescent sexual activity and risks of pregnancy and sexually transmitted diseases (STDs). Based on an experimental design, the impact analysis uses survey data collected in 2005 and early 2006 from more than 2,000 teens who had been randomly assigned to either a program group that was eligible to participate in one of the four programs or a control group that was not. The findings show no significant impact on teen sexual activity, no differences in rates of unprotected sex, and some impacts on knowledge of STDs and perceived effectiveness of condoms and birth control pills
本文考察了四项仅强调禁欲的教育项目对青少年性行为以及怀孕和性传播疾病（STD）风险的影响。基于实验设计，影响分析使用了2005年及2006年初收集的调查数据，这些数据来自2000多名青少年，他们被随机分配到一个有资格参与四项项目之一的项目组或一个无资格参与的对照组。研究结果表明，这些项目对青少年性行为没有显著影响，在无保护性行为发生率上没有差异，对性传播疾病知识以及对避孕套和避孕药的感知效果有一些影响。
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