Σύγκριση μεθόδων

	Δοκιμή Fligner-Killeen για Ομοιογένεια Διασπορών	Έλεγχος Bartlett για την Ομοιογένεια των Διακυμάνσεων
Πεδίο	Στατιστική	Στατιστική
Οικογένεια	Regression model	Hypothesis test
Έτος προέλευσης	1976	1937
Δημιουργός	Michael A. Fligner & Timothy J. Killeen	Maurice Stevenson Bartlett
Τύπος	Rank-based test for homogeneity of variances	Parametric variance homogeneity test
Θεμελιώδης πηγή	Fligner, M. A., & Killeen, T. J. (1976). Distribution-Free Two-Sample Tests for Scale. Journal of the American Statistical Association, 71(353), 210-213.	Bartlett, M. S. (1937). Properties of sufficiency and statistical tests. Proceedings of the Royal Society of London. Series A, 160(901), 268–282.
Εναλλακτικές ονομασίες	Fligner-Killeen test of variance homogeneity, rank-based variance homogeneity test, Fligner-Killeen Varyans Homojenliği Testi	Bartlett's Chi-Square Test, Test for Equality of Variances, Bartlett's Homogeneity Test, Varyans Homojenliği Testi
Συναφείς	5	2
Σύνοψη	The Fligner-Killeen test is a rank-based test that checks whether several independent groups share the same variance (scale). Introduced by Fligner and Killeen in 1976, it does not require the data to be normally distributed, making it a robust nonparametric alternative to the Levene and Bartlett tests.	Bartlett's Test is a classical parametric procedure for testing whether two or more independent groups share a common population variance. Introduced by Maurice Stevenson Bartlett in 1937, it formalises the null hypothesis that all group variances are equal by constructing a chi-square statistic from the ratio of pooled to individual group variances. It is a standard pre-analysis step before applying ANOVA or other procedures whose validity depends on the homoscedasticity assumption.