방법 비교

	Kendall's Tau Rank Correlation	스피어만 순위 상관 계수
분야	통계학	통계학
계열	Hypothesis test	Hypothesis test
기원 연도	1938	1904
창시자	Maurice G. Kendall	Charles Spearman
유형	Nonparametric rank correlation	Nonparametric rank-based correlation
원전	Kendall, M. G. (1938). A new measure of rank correlation. Biometrika, 30(1/2), 81–93.	Spearman, C. (1904). The proof and measurement of association between two things. The American Journal of Psychology, 15, 72–101.
별칭	Kendall tau, Kendall rank correlation, tau-b, tau-c	Spearman's rho, Spearman rank-order correlation, Spearman Sıra Korelasyonu
관련	4	4
요약	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.	The Spearman rank correlation coefficient (ρ) is a nonparametric measure of the monotonic association between two variables. Introduced by Charles Spearman in 1904, it converts raw observations to ranks and measures how consistently one variable increases as the other increases, without assuming a normal distribution or a linear relationship.