非概率抽样

方法采用非概率抽样法整群抽取某农村中学初中生147名，应用匹兹堡睡眠质量指数（PSQI）和Epworth嗜睡量表（ESS）分别进行调查，用SPSS10.0统计软件包对资料进行分析。

Methods 147 junior middle school students living in rural areas were taken out by non-probability sampling . Pittsburgh Sleep Quality Index ( PSQI ) and Epworth Sleepiness Scale ( ESS ) were used to investigation . SPSS 10.0 statistical package was used for these analyses .

本研究主要立足于大连地区，并且以当地的大中型超市为研究对象，通过非概率抽样的调查法对大连地区的消费者进行了调查。

This research takes the medium and large supermarkets in Dalian as the object of study , and investigates the consumers in Dalian by non-probability sampling .

目前使用的两种抽样的基本方法是概率抽样和非概率抽样。

The two basic sampling methods in use today are probabilistic and non_probabilistic sampling .

通过非概率抽样中的方便抽样方法选择访谈对象，以结构式访谈收集资料；

Convenience sampling and structural interview were utilized respectively for selecting respondents and gathering datum .

方法采用非概率抽样的方法对吉林省几所不同级别医院的医务人员进行调查，重点了解护士及护工在医院工作场所遭受暴力的情况。

Methods The workers in some hospitals of Jilin Province , especially nurses , were investigated by nonprobability sampling .

当前我国民意调查报道中存在三个主要问题：一是非概率抽样使样本代表性受质疑；

At present , the public opinion survey report of our country has three main problems . Firstly , non-probability sampling makes sample 's representation untrustworthy .

方法采用非概率随机抽样方法，选取283户家庭进行调查，并对调查结果进行统计、分析。

METHODS : A total of 283 families were investigated by random sampling , and the results of investigation were analyzed statistically .