以系统随机整群抽样法对陕南白山羊进行了遗传资源的抽样检测。
The genetic resources of South Shaanxi white goats are examined with the method of Stratified Random Cluster sampling.
方法：于2005-10采用整群抽样法随机抽取河南大学本科新生310人进行问卷调查。
METHODS:310 freshmen in October 2005, selected from Henan University by cluster sampling, were interviewed by questionnaires.
方法采用随机整群抽样法抽取699名护航舰队官兵，用症状自评量表(SCL- 90)对其进行心理测评。
MethodsThrough random cluster sampling, 699 convoying warship soldiers were investigated with Symptom Check-List 90 (SCL-90).
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.
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