Raw Data One-Way ANOVA + Tukey HSD Calculator
Group 1
Enter values separated by spaces, commas, or newlines. Non-numeric entries ignored.Group 2
Enter values separated by spaces, commas, or newlines.Group 3
Enter values separated by spaces, commas, or newlines.Significance Level
Typically 0.05 (5% significance level). Used for ANOVA and Tukey HSD interpretation.💡 How to Use the Calculator
Ready to analyze your data? Follow these simple steps to perform your One-Way ANOVA and post-hoc analysis in seconds!
1
Enter your groups: Choose how many treatment groups or conditions you want to compare.
2
Input Raw Data: Type or paste your numbers into each group's text area. Separate your data points using commas, spaces, or new lines.
3
Set Significance Level: Select your desired alpha level (usually 0.05) to evaluate your results.
✓
Calculate! Click the button to instantly get your ANOVA table, Levene's test for variance homogeneity, effect size (η²), and an automatic Tukey HSD post-hoc test if your results are significant.
ANOVA Assumption: Homogeneity of Variance (Levene's Test)
One-Way ANOVA assumes that the variances of the different groups are equal. This calculator uses **Levene's Test** (median-based) to check this. A significant Levene's test (p < α) suggests unequal variances, which can affect the reliability of the ANOVA results, especially if group sizes are very different. The standard ANOVA results are presented regardless, but interpret with caution if Levene's test is significant.
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