查询词典 cluster sampling

Methods a cluster stratified sampling method was used to chose 3 989 pupils from six schools of different levels in xiamen. they were investigated with conners parent symptom questionnaire.

采用整群分层抽样法抽取厦门市6所不同层次的小学一～五年级学生3 989名为调查对象，应用conners量表进行调查，dsm-ⅳ诊断标准确诊。

Methods With multi-stage stratified random cluster sampling, 3835 persons were selected for observation from 145 608 coal mine employees on the list.

采取多阶段分层随机整群抽样方法从某煤矿集团145608名在册员工中抽取3835人为观察对象，进行问卷调查，现场测量血压、身高、体重、腰围及检验血糖、血脂。

Methods: The investigation was made among 5204 persons of 1798 households in 3 city propers of Hebei Province by Cluster and stratified sampling method.

本次调查采用多阶段分层整群抽样的方法，共抽取了全省样本地区3个城区(分别是石家庄市长安区、唐山市路北区、张家口市桥东区)，共调查住户1798户，调查人口5204人。

Methods: People (age 18～69) from the six national minorities were investigated through sam- pling by adopting current sociology, anthropology, the method of delaminating cluster sampling in statisti- cal method and the test system on scientific literacy made by the scientific associa...

采用国际通用的社会学、人类学和统计学方法分层整群抽样方法和中国科协制定的科学素养测试体系和问卷模式，对布依族、苗族、侗族、水族、瑶族和毛南族6种少数民族18～69岁成年人进行抽样调查。

Methods: Cluster sampling was used in randomly selected individualsaged(?50 yearsin the southern rural area of Heilongjiang.After the pre-experiment uniform standard was completed,5058 individuals(91%)were received visual acuity test and eye examination.

采用整群随机抽样方法将黑龙江省南部农村人口按一定的标准划分成抽样单位，两组人员通过预实验统一标准后对年龄？

Methods By method of stratified random cluster sampling, a total of 1822 children and adolescents of Tibetan, hang and Han nationalities were recruited in A-ba area in Sichuan. Their finds height, sitting- height, knee-height and forearm length were measured. Growth and development of bone were analyzed.

采用分层随机整群抽样的方法，测量四川省阿坝州7~18岁藏、汉、羌族1822名男女儿童少年的身高、坐高、前臂长和膝高4项指标，并对其骨骼生长发育状况进行比较分析。

Methods Cluster sampling was used to investigate general growth situation of the children at 6～13 years of Zhuang and Han nationalities. Their body height, sitting height, body weight and chest circumference were measured.

采用整群抽样方法，以广西移民安置区6～13岁壮族、汉族儿童为调查对象，对儿童进行身高、坐高、体重、胸围测量，家长完成儿童生长发育影响因素问卷调查。

The cluster random sampling method was employed to select 3 hospitals from all 5 municipal hospitals, the selected 3 hospitals were Zhuhai people hospital, Gongbei hospital, and maternal and child health care hospital.

方法采用整群随机抽样方法，在珠海市五所市级医院中随机抽取三所医院(即：珠海市人民医院、拱北医院和中医院)。

Methods A crosssectional survey was conducted among 713 students from a secondary vocational school in Hefei by using cluster sampling method.

采用整群抽样方法在合肥市某中专学校对713名学生进行问卷调查。

Methods With random cluster sampling, a total of 196 parents were chosen from rural communities in district of Xi'an city.

采用整群随机抽样的方法，在西安市农村社区的 4个乡抽取 10个村 196名小儿喂养人进行现场问卷调查，采用SPSS10 。0软件包进行统计分析。

What was it that made you want to change sider ?

是什么使你临阵倒戈？

I don't know what he wants, but let's play along with him.

我不知道他要干什么，可我