Compară metode

	Testul Wilcoxon cu semne robuste pentru eșantioane pereche	Testul t pentru eșantioane pereche
Domeniu	Statistică	Statistică
Familie	Hypothesis test	Hypothesis test
Anul apariției	1945 (original); robust extensions 1990s–2000s	1908
Autorul original	Frank Wilcoxon (original); Rand R. Wilcox (robust extensions)	Student (W. S. Gosset)
Tip	Robust nonparametric paired difference test	Parametric mean comparison
Sursa seminală	Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838	Student (1908). The probable error of a mean. Biometrika, 6(1), 1–25.
Denumiri alternative	robust signed-rank test, robust nonparametric paired test, outlier-resistant Wilcoxon test, robust WSR test	dependent t-test, matched pairs t-test, repeated measures t-test, within-subjects t-test
Înrudite	5	3
Rezumat	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 paired samples t-test is a parametric hypothesis test that compares the means of two related measurements from the same subjects or matched pairs to determine whether the average difference is significantly different from zero. It leverages the dependency between observations to produce a more powerful test than its independent-samples counterpart.