Mediating mechanisms in a school-based drug prevention program: first-year effects of the Midwestern Prevention Project.
Mediating mechanisms in a school-based drug prevention program: first-year effects of the Midwestern Prevention Project.
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DOI：
10.1037//0278-6133.10.3.164
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
David P. MacKinnon;J. Ca;M. Pentz;James H. Dwyer;William B. Hansen;B. Flay;E. Y. I. Wang
中科院分区：
文献类型：
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作者：
David P. MacKinnon;J. Ca;M. Pentz;James H. Dwyer;William B. Hansen;B. Flay;E. Y. I. Wang
描述了（a）基于社会影响的药物预防计划（中西部预防项目）对中介变量的影响，它的目的是改变和（B）的过程中，对中介变量的影响改变了药物（烟草，酒精和大麻）的使用。在密苏里州堪萨斯城和堪萨斯州堪萨斯城的42所中学和初中的学生，在1984年秋季（N = 5，065）和一年后（N = 5，008）的24所学校已经通过了该计划。与对照学校的学生相比，项目学校的学生变得不太可能表达对吸毒的积极后果的信念，不太可能表明他们将来会使用此类药物，更有可能报告他们的朋友对吸毒的容忍度较低，并且更有可能相信他们能够更好地与朋友交流毒品或学校问题。朋友对药物使用的耐受性的看法的变化是最实质性的调解程序对药物使用的影响。有证据表明，使用的意图和信念的积极后果的使用也可能介导的程序对药物使用的影响。
Describes (a) the effects of a social-influences-based drug prevention program (the Midwestern Prevention Project) on the mediating variables it was designed to change and (b) the process by which the effects on mediating variables changed use of drugs (tobacco, alcohol, and marijuana). Students in 42 middle schools and junior high schools in Kansas City, Missouri, and Kansas City, Kansas, were measured in the fall of 1984 (N = 5,065) and again 1 year later (N = 5,008) after 24 of the schools had been through the program. Compared to students in control schools, students in program schools became less likely to express belief in the positive consequences of drug use, less likely to indicate that they would use such drugs in the future, more likely to report that their friends were less tolerant of drug use, and more likely to believe that they were better able to communicate with their friends about drug or school problems. Change in perceptions of friends' tolerance of drug use was the most substantial mediator of program effects on drug use. There was evidence that intentions to use and beliefs about the positive consequences of use may also mediate program effects on drug use.