One-Way ANOVA
Test whether three or more group means differ using a one-way ANOVA with F statistic, p-value and effect size, free online.
About this calculator
One-way ANOVA compares the variance between group means with the variance within groups: F = MSB รท MSW with dfโ = k โ 1 and dfโ = N โ k. Put each group on its own line (numbers separated by commas or spaces). The p-value comes from the F distribution; ฮทยฒ is the share of variance explained.