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	Test dei ranghi con segno di Wilcoxon robusto	Test t robusto per campioni appaiati
Campo	Statistica	Statistica
Famiglia	Hypothesis test	Hypothesis test
Anno di origine	1945 (original); robust extensions 1990s–2000s	1974
Ideatore	Frank Wilcoxon (original); Rand R. Wilcox (robust extensions)	K. K. Yuen; extended by Rand R. Wilcox
Tipo	Robust nonparametric paired difference test	Robust parametric mean comparison
Fonte seminale	Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838	Yuen, K. K. (1974). The two-sample trimmed t for unequal population variances. Biometrika, 61(1), 165–170.
Alias	robust signed-rank test, robust nonparametric paired test, outlier-resistant Wilcoxon test, robust WSR test	trimmed-mean paired t-test, Yuen paired t-test, robust dependent-samples t-test, trimmed paired comparison
Correlati	5	3
Sintesi	The robust Wilcoxon signed-rank test extends the classical Wilcoxon signed-rank test by incorporating outlier-resistant location measures or robust preprocessing steps, improving inference on paired data when extreme observations or heavy-tailed distributions threaten validity of standard rank-based conclusions.	The robust paired samples t-test replaces arithmetic means with trimmed means and Winsorized variance to compare two related measurements while resisting the distorting influence of outliers and non-normal distributions, producing reliable inference where the classic paired t-test breaks down.