ABSTRACT
In this chapter you will:
Learn how to render a categorical variable that has more than two categories as a set of coded variables. The set can then be used to represent the categorical variable in multiple-regression equations.
Learn two different ways of coding categorical variables: dummy coding and contrast coding.
Learn how to perform a one-way analysis of variance using coded variables. This allows you to analyze data from single-factor between-subjects studies when the single factor encompasses more than two levels or groups.
