非参数检验在循证医学实践中的价值——Wilcoxon秩和检验的正确应用
Values of Nonparametric Test in Evidence-Based Medicine Practice——Correct Application of Wilcoxon Rank Sum Test
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摘要: 以文献数据为例,介绍如何正确应用非参数检验中的Wilcoxon秩和检验进行两组有序分类资料疗效差异的统计学假设检验。Abstract: medical statistics;hypothesis test;nonparametric test;Wilcoxon rank sum test