השוואת שיטות

	מבחן ווילקוקסון לדירוג-סימן רובסטי	מבחן t למדגמים מזווגים רובסטי
תחום	סטטיסטיקה	סטטיסטיקה
משפחה	Hypothesis test	Hypothesis test
שנת המקור	1945 (original); robust extensions 1990s–2000s	1974
הוגה השיטה	Frank Wilcoxon (original); Rand R. Wilcox (robust extensions)	K. K. Yuen; extended by Rand R. Wilcox
סוג	Robust nonparametric paired difference test	Robust parametric mean comparison
מקור מכונן	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.
כינויים	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
קשורות	5	3
תקציר	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.