how to do categorical design in factorial design how to design categorical variable how to create categorical variables categorical variable independent continuous variables is categorical variable independent what is the independent categorical variable in factorial design? how to add two independent categorical variables to a categorical variable what are the two types of independent categorical variables in factorial design which categorical variable is independent which categorical variable is independent and dependent if a factorial design is used? which categorical variable has two independent categorical variables and is dependent what is a categorical variable in factorial design which of the following factors can be used in a factorial design to find a categorical variable? what is the categorical variable how does factorial design use categorical variables which variable is an independent categorical variable why would a categorical variable have zero for the center point in factorial design? which of the following describes a factorial design? how to create categorical variable in factorial design which categorical variable can be added as one continuous variable in factorial design?