stats

Two-Way ANOVA

Full two-way ANOVA table with interaction term — η², F-tests, interaction plot for Factor A × B.

Balanced design required — equal observations per cell. For unbalanced or repeated measures, use the Repeated Measures ANOVA calculator.
Design
Cell Data (comma-separated values per cell)
ANOVA Table
SourceSSdfMSFpη²
Factor A
Factor B
A × B
Error
Total
SS_A = bn·Σ(x̄_i..−x̄)²  ·  SS_AB = n·Σ(x̄_ij−x̄_i.−x̄_.j+x̄)²