Vertaile menetelmiä
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| Bartlettin testi varianssien homogeenisuudelle× | Fligner-Killeen-testi varianssien homogeenisuudelle× | |
|---|---|---|
| Tieteenala | Tilastotiede | Tilastotiede |
| Menetelmäperhe≠ | Hypothesis test | Regression model |
| Syntyvuosi≠ | 1937 | 1976 |
| Kehittäjä≠ | Maurice Stevenson Bartlett | Michael A. Fligner & Timothy J. Killeen |
| Tyyppi≠ | Parametric variance homogeneity test | Rank-based test for homogeneity of variances |
| Alkuperäislähde≠ | Bartlett, M. S. (1937). Properties of sufficiency and statistical tests. Proceedings of the Royal Society of London. Series A, 160(901), 268–282. DOI ↗ | Fligner, M. A., & Killeen, T. J. (1976). Distribution-Free Two-Sample Tests for Scale. Journal of the American Statistical Association, 71(353), 210-213. DOI ↗ |
| Rinnakkaisnimet≠ | Bartlett's Chi-Square Test, Test for Equality of Variances, Bartlett's Homogeneity Test, Varyans Homojenliği Testi | Fligner-Killeen test of variance homogeneity, rank-based variance homogeneity test, Fligner-Killeen Varyans Homojenliği Testi |
| Liittyvät≠ | 2 | 5 |
| Tiivistelmä≠ | 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. | 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. |
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