Bartlett's Test Calculator

Test for homogeneity of variances assuming normally distributed data.

Group Data

Group 1 (comma-separated)

Group 2 (comma-separated)

Group 3 (comma-separated)

Significance Level (alpha)

Note: Bartlett's test is sensitive to departures from normality. Use Levene's test for non-normal data.

Bartlett's Chi-Square

3.4126

Variances Are Homogeneous

dfDegrees of Freedom

pP-Value

0.181541

cvCritical Value

5.9910

FVariance Ratio

5.4772

Group 1 (n=6)s^2 = 19.7667

Group 2 (n=6)s^2 = 108.2667

Group 3 (n=6)s^2 = 107.3667

Pooled Variance78.4667

Chi^2 = [Sum((n-1)*ln(Sp^2)) - Sum((n-1)*ln(Si^2))] / C

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This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

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ðŸ”„Last reviewed: May 2026

âœ“Formula checks are based on standard references and internal QA review.