What is the fundamental difference between one-way analysis of variance and two-way analysis of variance?

Solution 7 CQQ Step 1: The fundamental difference between one way and two way analysis of variance is that, One-way anova is used when there is only one independent variable with several groups or levels or categories, and the normally distributed or dependent variables are measured, and the means of each group of response or outcome variables are compared. When there are two independent variables each with multiple levels and one dependent variable in question the anova becomes two-way.