Duncan Susan C, Strycker Lisa A, Duncan Terry E, Chaumeton Nigel R
Oregon Research Institute 1715 Franklin Boulevard Eugene, OR 97403.
J Sport Exerc Psychol. 2004 Aug 1;18(3):353-368. doi: 10.1016/j.jaging.2004.03.001.
It is important that studies on youth health behavior obtain sufficiently large representative samples so that power is adequate and results are generalizable. Few researchers, however, have documented procedures and methods for recruitment of a random stratified youth sample for studies on health-related behavior, specifically physical activity. This study describes the recruitment methods used to attain a stratified sample of 360 target youth (male and female from 10-, 12-, and 14-year old cohorts), and a parent of each child, representing families in 58 different neighborhoods. A peer of each target youth was also invited to participate. Recruitment was conducted primarily by telephone, using computer-assisted telephone interviewing (CATI) software. Approximately 38% of calls resulted in person contact, of which about 98% of families did not qualify. Of those qualified, about 68% agreed to participate. The telephone recruitment was supplemented by door-to-door recruitment in selected neighborhoods. The average cost of telephone recruitment was approximately $99 per family. Advantages and limitations of the recruitment method are discussed.
关于青少年健康行为的研究获得足够大的代表性样本非常重要，这样才能有足够的效力并使研究结果具有普遍性。然而，很少有研究人员记录招募随机分层青少年样本以进行与健康相关行为（特别是体育活动）研究的程序和方法。本研究描述了用于获取360名目标青少年（来自10岁、12岁和14岁队列的男性和女性）及其每个孩子的一位家长的分层样本的招募方法，这些样本代表了58个不同社区的家庭。还邀请了每个目标青少年的一位同龄人参与。招募主要通过电话进行，使用计算机辅助电话访谈（CATI）软件。大约38%的电话联系上了相关人员，其中约98%的家庭不符合条件。在符合条件的家庭中，约68%同意参与。电话招募在选定社区通过挨家挨户上门招募进行补充。电话招募的平均成本约为每户99美元。本文还讨论了该招募方法的优点和局限性。
