2X2 Anova Sample Size Calculator
2X2 Anova Sample Size Calculator. As a general guideline, you can calculate power.80, . One speaks of a 2×2 anova because of the 2×2 table.
You have to calculate adequate sample size for two way anova using this free software.
Number of groups for factor a: Number of groups for factor b: Number of groups in factor a. Sample size per group in .