V2EX mann-whitney

Mann-Whitney

释义 Definition

Mann-Whitney(通常指 MannWhitney U test):一种非参数检验,用于比较两组独立样本的整体水平是否存在差异(常用于比较中位数或分布位置差异),当数据不满足正态分布或量表为等级/非连续时尤其常用。也常被称为 Wilcoxon rank-sum test(威尔科克森秩和检验)(两者在常见情形下等价/密切相关)。

发音 Pronunciation (IPA)

/mn wtni/

例句 Examples

The researchers used a Mann-Whitney test to compare pain scores between the two groups.
研究人员使用 Mann-Whitney 检验来比较两组之间的疼痛评分。

Because the measurements were skewed and the samples were independent, we applied the Mann-Whitney U test and reported the effect size alongside the p-value.
由于测量数据呈偏态且样本彼此独立,我们采用 Mann-Whitney U 检验,并在报告 p 值的同时给出效应量。

词源 Etymology

该术语来自统计学家 Henry B. MannDonald R. Whitney 的姓氏命名,用来指代他们提出/推广的基“秩(rank)”的两独立样本比较方法;在统计文献中也常与 Wilcoxon 的相关检验并称或互作别名使用。

相关词 Related Words

文学与著作出处 Notable Works

  • Practical Nonparametric Statistics(W. J. Conover)
  • Nonparametric Statistical Methods(Myles Hollander, Douglas A. Wolfe, Eric Chicken)
  • Biostatistical Analysis(Jerrold H. Zar)
  • Fundamentals of Biostatistics(Bernard Rosner)
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