Methods Under stratified sampling, the investigation of the oral health concept and behavior were carried out using closed type questionnaire method.
方法采取分层抽样方法，分别对口腔健康观念与行为情况进行问卷调查、填写记录。
Methods a questionnaire was used to survey injury -related knowledge, attitude and behavior of 42 065 students drawn from 4 counties of Zhejiang province by using a cluster sampling method.
方法采用整群抽样法，选取浙江省4个县区的42 065名中小学生伤害的认知和行为进行问卷调查。
Behavior sampling, focal animal sampling and all-occurrence recording method were applied in our study.
研究中采用了行为取样法、目标动物取样法和全事件记录法。
Objective: Using the method of cluster sampling to find out syudents ' knowledge attitude and behavior towards aids, to provide theoretical basis for AIDS education.
态度、行为对艾滋病的预防和控制具有重要的意义。
Objective: Using the method of cluster sampling to find out syudents ' knowledge attitude and behavior towards aids, to provide theoretical basis for AIDS education.
态度、行为对艾滋病的预防和控制具有重要的意义。
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