【单选题】Before combinedthe data from independent studiesfor a Meta analysis, it should be performed
【判断题】高低压同杆架设,在低压线路工作时,工作人员与最上层高压带电导线的垂直距离不得小于 0.7m。()
【多选题】The description of Meta-analysis is correct
A.
Categorical variable data can choose OR, RR, RD as the combined effect
B.
Fixed effect models can eliminate the causes of heterogeneity
C.
For numerical variable data, the standardized mean difference can be used as the combined effect
D.
The random effects model can eliminate the causes of heterogeneity
【简答题】教育的生物起源论认为,教育产生于儿童对成人的无意识地模仿。( )
【多选题】高低压同杆架设,在低压带电线路上工作时,应( )。
【多选题】上下压同杆架设在低压带电线路上工作时,必须注意()
C.
工作人员不得穿梭未采取绝缘措施的低压带电导线
【单选题】评价Meta分析有没有发表偏倚的一种最常用的图示法是( )
【单选题】In the Meta-analysis, the purpose of the heterogeneity test is
A.
Calculate the combined effect
B.
Analyze whether each independent study is heterogeneous
C.
Evaluate the stability of the combined effect volume under certain assumptions
D.
Increase the effectiveness of statistical tests