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Exploring the Causal Links Between Toxoplasma gondii Infection and Risk of Brain Tumors: A Bidirectional Mendelian Randomization Analysis. [PDF]

Brain Behav
Shi P, Wei G, Li Z, Du B, Zhang G, Zhang J, Wang Y, Chen Y, Cheng Z, Cheng Z.   +9 more
europepmc   +1 more source

Causal links between congenital malformations, birth weight, and neuroblastoma: insights from Mendelian randomization. [PDF]

BMC Pediatr
Aierken A, Atabieke F, Aizezi Y, Aierken M, Li SX, Zhou L.   +5 more
europepmc   +1 more source

Exploring the causal relationship between matrix metalloproteinases and adrenocortical carcinoma: A Mendelian randomization study. [PDF]

Medicine (Baltimore)
Huang Z, Zhang Q.
europepmc   +1 more source

Robustness of multiple comparisons against variance heterogeneity

, 1983
openaire   +1 more source

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Model Fitting Under Patterned Heterogeneity of Variance

Forest Science, 1989
Two approaches toward fitting regression models with multiplicative error heteroscedasticity recur in the forestry, ecology, and statistical literature. One includes the estimation of the heterogeneity in the fitting process.
T. Gregoire, M. E. Dyer
semanticscholar   +2 more sources

Use of range in testing heterogeneity of variance

Biometrika, 1966
Among the currently used tests for heterogeneity of variances are those of Bartlett (1937), based on Neyman & Pearson's (1931) likelihood ratio; and of Hartley (1950), based on the ratio of maximum to minimum in a set of k independent sample variances, each with the same number of degrees of freedom, which we call n 1.
R. T. Leslie, B. Brown
semanticscholar   +4 more sources

Heterogeneity of variance in clinical data.

Journal of Consulting and Clinical Psychology, 2000
Traditional parametric (t, F) and nonparametric (Mann-Whitney-Wilcoxon U, Kruskal-Wallis H) statistics are sensitive to heterogeneity of variance (heteroscedasticity). Moreover, there are theoretical reasons to expect, and empirical results to document, the existence of heteroscedasticity in clinical data.
R. Grissom
semanticscholar   +3 more sources