Compara mètodes

	Test de Fligner-Killeen per a l'homogeneïtat de variàncies	Test de Levene i Brown-Forsythe per a la igualtat de variàncies
Camp	Estadística	Estadística
Família	Regression model	Regression model
Any d'origen	1976	1960
Autor original	Michael A. Fligner & Timothy J. Killeen	Howard Levene; Morton B. Brown and Alan B. Forsythe
Tipus	Rank-based test for homogeneity of variances	Homogeneity of variance test (robust)
Font seminal	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.
Àlies	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
Relacionats	5	5
Resum	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.