方法以修订的《儿童孤独问卷》与自编的《小学生社会创造性倾向问卷》为工具，对以整群取样法随机选取的3至6年级小学儿童共411人进行测查。
Methods Children's Loneliness Scale and Social Creativity Tendency Questionnaire for primary school Children were administered to 411, 3 to 6 graders of primary school by cluster sampling.
方法对北京市20所中学学生进行预防AIDS健康教育和生活技能培训，在培训前、后采用整群抽样方法获取样本进行评估。
Methods AIDS prevention and life skill training were developed among students in 20 middle schools. Evaluations were carried out before and after the education by cluster samplings.
方法采取典型整群抽样方法抽取样本，由经培训合格的调查员入户调查，对每户的户主或最熟悉家庭情况者进行询问调查。
Methods the stratified randomly cluster sampling was applied by well-trained investigators, and the inquired subject was either householder or the family member who is familiar with the family things.
方法按分层整群抽样的方法抽取样本，并通过问卷调查的方式收集有关广东省18岁以上居民的伤害信息。
Methods the study sample was got by multi-stage randomized sampling, and the injury information of the inhabitants aged over 18 years in Guangdong province was collected by questionnaire.
方法按分层整群抽样的方法抽取样本，并通过问卷调查的方式收集有关广东省18岁以上居民的伤害信息。
Methods the study sample was got by multi-stage randomized sampling, and the injury information of the inhabitants aged over 18 years in Guangdong province was collected by questionnaire.
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