姚婷婷,李长平,胡良平,马骏,刘媛媛.如何正确运用t检验——两算术均值比较优效性t检验及SAS实现[J].四川精神卫生杂志,2020,33(4):297-301.Yao Tingting,Li Changping,Hu Liangping,Ma Jun,Liu Yuanyuan,How to use t test correctly——the superiority t test of the comparison between two arithmetic means and SAS implementation[J].SICHUAN MENTAL HEALTH,2020,33(4):297-301 |
如何正确运用t检验——两算术均值比较优效性t检验及SAS实现 |
How to use t test correctly——the superiority t test of the comparison between two arithmetic means and SAS implementation |
投稿时间:2020-07-17 |
DOI:10.11886/scjsws20200717002 |
中文关键词: 优效性检验 优效性界值 t检验 算数均值比较 |
英文关键词:Superiority test Superiority cut-off value t test Comparison of arithmetic mean |
基金项目:国家自然科学基金项目(项目名称:贝叶斯生存分析方法在肝细胞癌肝移植患者预后预测中的应用研究,项目编号:81803333) |
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中文摘要: |
本文主要介绍临床试验中优效性检验的概念、假设检验、界值设定和样本量的估计以及成组设计一元定量资料优效性t检验的SAS实现。通过实例展示SAS在优效性t检验中的应用,分别基于两种数据结构(原始定量数据和样本含量、均值、标准差数据)进行操作,对结果进行解释并作出结论。 |
英文摘要: |
This article mainly introduced the concepts, hypothesis testing, cut-off setting and sample size estimation of the superiority test in clinical trials and the implementation of SAS for superiority t test of unary quantitative data in group design. The application of SAS software in the superiority t test was demonstrated through examples. Operating steps based on two data structures (based on raw quantitative data and based on sample size, mean and standard deviation data) were given. And it was also to explain the results and make the conclusion. |
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