Levene Test Calculator

Test homogeneity of variances across groups.

Levene W

3.5625

df12
df257

Levene W vs Total N

Formula

## Levene Test **W = [(N-k)/(k-1)] * [SS_between/SS_within]** Tests equal variances using absolute deviations from group means.

Esempio Risolto

N=60, 3 groups.

  1. 01W = (57/2) * (15/120) = 3.56

Domande Frequenti

Why vs Bartlett?

More robust to non-normality.

When needed?

Before ANOVA or t-tests assuming equal variances.

Brown-Forsythe?

Uses medians instead of means; even more robust.

Impara

Understanding the Normal Distribution

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