Σύγκριση μεθόδων

	Δοκιμή Jonckheere-Terpstra για Διατεταγμένες Εναλλακτικές	Έλεγχος Mann-Whitney U
Πεδίο	Στατιστική	Στατιστική
Οικογένεια	Hypothesis test	Hypothesis test
Έτος προέλευσης	1952	1947
Δημιουργός	A. R. Jonckheere and T. J. Terpstra	H. B. Mann & D. R. Whitney
Τύπος	Nonparametric trend test	Nonparametric two-group comparison
Θεμελιώδης πηγή	Jonckheere, A. R. (1954). A distribution-free k-sample test against ordered alternatives. Biometrika, 41(1-2), 133–145.	Mann, H. B. & Whitney, D. R. (1947). On a test of whether one of two random variables is stochastically larger than the other. Annals of Mathematical Statistics, 18(1), 50–60.
Εναλλακτικές ονομασίες	Jonckheere-Terpstra Testi, JT test, ordered k-sample test, trend test for ordered groups	Mann-Whitney-Wilcoxon test, Wilcoxon rank-sum test, Mann-Whitney U Testi
Συναφείς	5	4
Σύνοψη	The Jonckheere-Terpstra test is a nonparametric hypothesis test that detects a monotone trend across k ordered groups — testing whether the outcome rises (or falls) systematically as the group order increases. Developed independently by T. J. Terpstra (1952) and A. R. Jonckheere (1954), it is the directional, ordered-alternative counterpart to the Kruskal-Wallis test.	The Mann-Whitney U test is the nonparametric alternative to the independent samples t-test, comparing two independent groups by ranking all observations together rather than relying on their means. It was introduced by H. B. Mann and D. R. Whitney in 1947 and does not require the data to be normally distributed.