Comparer des méthodes

	Test t robuste pour échantillons appariés	Test t pour échantillons appariés
Domaine	Statistique	Statistique
Famille	Hypothesis test	Hypothesis test
Année d'origine	1974	1908
Auteur d'origine	K. K. Yuen; extended by Rand R. Wilcox	Student (W. S. Gosset)
Type	Robust parametric mean comparison	Parametric mean comparison
Source fondatrice	Yuen, K. K. (1974). The two-sample trimmed t for unequal population variances. Biometrika, 61(1), 165–170.	Student (1908). The probable error of a mean. Biometrika, 6(1), 1–25.
Alias	trimmed-mean paired t-test, Yuen paired t-test, robust dependent-samples t-test, trimmed paired comparison	dependent t-test, matched pairs t-test, repeated measures t-test, within-subjects t-test
Apparentées	3	3
Résumé	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.	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.