Σύγκριση μεθόδων

	Δοκιμή Fligner-Killeen για Ομοιογένεια Διασπορών	Έλεγχος Levene και Brown-Forsythe για την Ισότητα των Διακυμάνσεων
Πεδίο	Στατιστική	Στατιστική
Οικογένεια	Regression model	Regression model
Έτος προέλευσης	1976	1960
Δημιουργός	Michael A. Fligner & Timothy J. Killeen	Howard Levene; Morton B. Brown and Alan B. Forsythe
Τύπος	Rank-based test for homogeneity of variances	Homogeneity of variance test (robust)
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.	Levene, H. (1960). Robust Tests for Equality of Variances. In Contributions to Probability and Statistics: Essays in Honor of Harold Hotelling. Stanford University Press.
Εναλλακτικές ονομασίες	Fligner-Killeen test of variance homogeneity, rank-based variance homogeneity test, Fligner-Killeen Varyans Homojenliği Testi	Levene test, Brown-Forsythe test, homogeneity of variance test, Levene ve Brown-Forsythe Varyans Testi
Συναφείς	5	5
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.	The Levene and Brown-Forsythe test checks whether two or more groups share the same variance (homogeneity of variance). Levene (1960) built the test on absolute deviations from each group mean, and Brown and Forsythe (1974) made it robust to non-normal data by centring on the group median instead.