Allen J P, Philliber S, Hoggson N
Am J Community Psychol. 1990 Aug;18(4):505-24. doi: 10.1007/BF00938057.
Examined a program designed to prevent adolescent pregnancy, school failure, and dropout using a process model of evaluation to assess with which groups of participants and under what conditions the program was most effective. Students in the Teen Outreach Program of the Association of Junior Leagues and matched comparison students in 35 schools nationwide participated. Sites that highly utilized a volunteer service component, and sites that primarily served older students reported lower levels of student problem behaviors at program exit, after controlling for problem behaviors at entry. These findings occurred only for program youths and not for comparison youths. The connection of volunteer service to reductions in adolescent problem behaviors is interpreted in terms of helper-therapy and empowerment theories. Limitations of the analytic strategy used in this study, as well as techniques for addressing the limitations, are also discussed.
研究了一个旨在预防青少年怀孕、学业失败和辍学的项目，该项目使用一种评估过程模型来评估该项目在哪些参与者群体以及何种条件下最有效。美国青年联盟协会青少年拓展项目的学生以及全国35所学校中匹配的对照学生参与了研究。在控制了入学时的问题行为后，高度利用志愿服务部分的场所，以及主要服务年长学生的场所报告称，项目结束时学生问题行为水平较低。这些结果仅适用于参与项目的青少年，而不适用于对照青少年。志愿服务与青少年问题行为减少之间的联系根据帮助治疗和赋权理论进行了解释。还讨论了本研究中使用的分析策略的局限性以及解决这些局限性的技术。
