control group and experimental group具体说明在science中的control group和experimental group,并能举例说明

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control group and experimental group具体说明在science中的control group和experimental group,并能举例说明

control group and experimental group具体说明在science中的control group和experimental group,并能举例说明
control group and experimental group
具体说明在science中的control group和experimental group,并能举例说明

control group and experimental group具体说明在science中的control group和experimental group,并能举例说明
control group 控制组
experimental group 实验组,试验组
简单的的实验通常包含一个实验组和一个控制组.
控制组对组内进行实验操作.
实验组不对组内进行实验操作.
两组内的成员随机分配.以达到对比效果,这样得出实验操作与实验结果相关的结论.

打酱油,帮顶

供参考
一些实验
参与的对象会分为 control group及 experimental group
两组的成员不知道本身是属於那一组
以药物临床实验为例
实验期间
experimental group的成员会获供应‘真正’的药物来进行试验
而 control group的成员也会获供应‘药物’
但这些只是‘安慰剂’
并没有...

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供参考
一些实验
参与的对象会分为 control group及 experimental group
两组的成员不知道本身是属於那一组
以药物临床实验为例
实验期间
experimental group的成员会获供应‘真正’的药物来进行试验
而 control group的成员也会获供应‘药物’
但这些只是‘安慰剂’
并没有对有关疾病的真正疗效
这样安排
主要是剔除了病人对疗效的‘心理预期’的影响

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