homoscedasticity

(redirected from Homogeneity of variance)

ho·mo·sced·as·tic·i·ty

(hō'mō-skĕd-as-tis'ĭ-tē),
Constancy of the variance of a measure over the levels of the factor under study.

homoscedasticity

characterized by variances which do not differ greatly between distributions.
References in periodicals archive ?
Homogeneity of variance test was used to identify whether the data conformed to homogeneity of variance, and the statistical significance was determined with one-way analysis of variance (ANOVA) using SPSS17.
Before we go for ANOVA, results of the test of Homogeneity of Variance for self-perceived employability are analyzed.
Repeatability model assuming homogeneity of variance and the equal genetic correlation between lactations.
In order to examine the effect of non-normality on F-test robustness, a one-way design with 3 groups and homogeneity of variance was considered.
Hence, the regression model seems to be adequate and the homogeneity of variance assumption is met.
Primary analysis was performed to make sure there were no violations of the assumptions of normality, linearity, multicollinearity, and homogeneity of variance.
Normality of the values, homogeneity of variance and group comparisons were then carried out via Shapiro-Wilk, Levene's, and Duncan's methods.
The difference between the 7 groups was analyzed by the single factor analysis of variance (ANOVA one-way); difference between two groups was analyzed by the LSD method if the homogeneity of variance was satisfied, and Dunnett's T3 method was used if the homogeneity of variance was not satisfied; the test level was [alpha] = 0.
Levene's test was used to determine homogeneity of variances and in case of homogeneity of variance, post hoc Tukey test was used.
The normality of the MIR was assessed using the Kolmogorov-Smimov test, and homogeneity of variance was assessed using the Bartlett test (Zar 1999).
At first, the homogeneity of variance test was conducted according to the Lavigne statistics and p--amount (0.
M(j)], one should confirm that the homogeneity of variance assumption is not violated in these groups (LeBreton et al.