השוואת שיטות

	מקדם מתאם ספירמן רובסטי	מתאם דרגות טאו של קנדל
תחום	סטטיסטיקה	סטטיסטיקה
משפחה	Hypothesis test	Hypothesis test
שנת המקור	1990s–2000s	1938
הוגה השיטה	Rand R. Wilcox (robust extensions); Charles Spearman (base method, 1904)	Maurice G. Kendall
סוג	Robust nonparametric correlation	Nonparametric rank correlation
מקור מכונן	Wilcox, R. R. (2012). Introduction to Robust Estimation and Hypothesis Testing (3rd ed.). Academic Press. ISBN: 978-0123869838	Kendall, M. G. (1938). A new measure of rank correlation. Biometrika, 30(1/2), 81–93.
כינויים	Winsorized Spearman correlation, robust rank correlation, trimmed Spearman correlation, outlier-resistant Spearman	Kendall tau, Kendall rank correlation, tau-b, tau-c
קשורות	5	4
תקציר	Robust Spearman correlation is an outlier-resistant measure of monotonic association between two variables. It applies robustification strategies — such as Winsorizing extreme ranks or using the percentage-bend approach — to protect Spearman's rho against distortion from outliers or heavy-tailed distributions, while retaining its nonparametric rank-based character.	Kendall's tau is a nonparametric measure of the ordinal association between two variables. It quantifies how consistently the relative ordering of one variable matches the ordering of another across all observation pairs, making it robust to outliers and suitable for ordinal or non-normally distributed data.