TABLE OF CONTENTS
Multiple Regression with Categorical Predictor Variables

The Multiple Regression Model
Dichotomous Predictor Variables
Testing for Blocks of Variables
Correlated and Uncorrelated Predictor Variables
Example Data
Faculty Salary Simulated Data
Categorical Predictor Variables
Dummy Coding - making many variables out of one
Dummy Coding with three levels
Using SPSS/WIN to Dummy Code Variables
Similarity of Regression analysis and ANOVA
Dummy Coding into Independent Variables
Categorical Predictor Variables with Six Levels
Combinations of Categorical Predictor Variables
EQUAL SAMPLE SIZE
Main Effects
Interaction Effects
UNEQUAL SAMPLE SIZE
Main Effects of Dept Entered First
Main Effects of Dept Entered Second
Main Effects of Dept Entered Third
Main Effect of Gender Given Rank, Dept, Gender X Rank, Gender X Dept, Years, Merit
ANOVA using General Linear Model in SPSS/WIN