Σύγκριση μεθόδων

	Δοκιμή Jonckheere-Terpstra για Διατεταγμένες Εναλλακτικές	Δοκιμή H Kruskal-Wallis
Πεδίο	Στατιστική	Στατιστική
Οικογένεια	Hypothesis test	Hypothesis test
Έτος προέλευσης	1952	1952
Δημιουργός	A. R. Jonckheere and T. J. Terpstra	William Kruskal & W. Allen Wallis
Τύπος	Nonparametric trend test	Nonparametric group comparison
Θεμελιώδης πηγή	Jonckheere, A. R. (1954). A distribution-free k-sample test against ordered alternatives. Biometrika, 41(1-2), 133–145.	Kruskal, W. H. & Wallis, W. A. (1952). Use of ranks in one-criterion variance analysis. Journal of the American Statistical Association, 47(260), 583–621.
Εναλλακτικές ονομασίες	Jonckheere-Terpstra Testi, JT test, ordered k-sample test, trend test for ordered groups	Kruskal-Wallis H test, one-way ANOVA on ranks, Kruskal-Wallis one-way analysis of variance, Kruskal-Wallis Testi
Συναφείς	5	5
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 Kruskal-Wallis H test is a nonparametric hypothesis test that compares three or more independent groups to decide whether their distributions (typically their medians) differ. Introduced by William Kruskal and W. Allen Wallis in 1952, it works on ranks rather than raw values and is the distribution-free counterpart to one-way ANOVA.