A one-way analysis of variance (ANOVA) test indicates whether the mean of a numeric column varies across category values or groupings of another column. A two-way ANOVA tests a different hypothesis: whether the column’s mean is affected by the interaction of two columns beyond what can be explained by considering the effect of each column individually.
For example, a one-way ANOVA might tell you that test scores vary across time of day and teaching method; a two-way ANOVA can tell you whether the time of day and teaching method combine in some extra way to affect the test score. If a particular teaching method is only more effective at a certain time of day, a two-way ANOVA can uncover this interaction.
To perform a two-way ANOVA test:
Three-way and higher dimensional ANOVA tests are not supported in Wizard.