方法对比

	Wilcoxon符号秩检验	符号检验
领域	统计学	统计学
方法族	Hypothesis test	Hypothesis test
起源年份	1945	1946
提出者	Frank Wilcoxon	W. J. Dixon & A. M. Mood
类型	Nonparametric paired comparison	Nonparametric median test
开创性文献	Wilcoxon, F. (1945). Individual comparisons by ranking methods. Biometrics Bulletin, 1(6), 80–83.	Dixon, W. J. & Mood, A. M. (1946). The statistical sign test. Journal of the American Statistical Association, 41(236), 557–566.
别名	Wilcoxon matched-pairs signed-rank test, signed-rank test, Wilcoxon İşaretli Sıra Testi	İşaret Testi (Sign Test), one-sample sign test, paired sign test
相关	4	4
摘要	The Wilcoxon signed-rank test is the nonparametric alternative to the paired t-test, comparing two related measurements on the same subjects to decide whether their typical difference is zero. It was introduced by Frank Wilcoxon in 1945 and works on continuous or ordinal data without assuming normality.	The sign test is the simplest nonparametric hypothesis test for deciding whether the median of paired differences — or of a single sample — differs significantly from a hypothesised value. Formalised by W. J. Dixon and A. M. Mood in 1946, it imposes virtually no distributional assumptions and can be applied to any data where individual differences can be classified as positive or negative.