The aim of these materials is to help you increase your skills in using regression analysis
with SPSS. This web book does not
teach regression, per se, but focuses on how to perform regression analyses
using SPSS. It is assumed
that you have had at least a one quarter/semester course in regression (linear models) or a general
statistical methods course that covers simple and multiple regression and have
access to a regression textbook that explains the theoretical background of the
materials covered in these chapters. These
materials also assume you are familiar with using SPSS, for example that you
have taken the ATS SPSS 1 & SPSS 2 classes or have
equivalent knowledge of SPSS. If you are a member of the UCLA community and have questions about these
materials, we welcome you to send questions via email to ATSstat@ucla.edu
or to visit our consulting services .
You can find this book at http://www.ats.ucla.edu/stat/spss/webbooks/reg/
Book Chapters
- Section 1: Regression Concepts
- Section 2: Categorical
Coding and Interactions in Depth
-
Chapter 4 - Beyond Ordinary Least Squares Regression
-
Chapter 5 - Additional coding systems for categorical variables in regression
analysis
- Chapter 6 - More on interactions of categorical variables in
regression analysis (under development)
- Chapter 7 - More on interactions of continuous and categorical
variables in regression analysis (under development)
- Chapter 8 - Interactions of continuous variables in regression
analysis (under development)
Book Chapters and Outline
- Chapter 1 - Simple and Multiple Regression
1.0 Introduction
1.1 A First Regression Analysis
1.2 Examining Data
1.3 Simple linear regression
1.4 Multiple regression
1.5 Transforming variables
1.6 Summary
-
Chapter 2 - Regression Diagnostics
2.0 Regression Diagnostics
2.1 Unusual and Influential data
2.2 Tests on Normality of Residuals
2.3 Tests on Nonconstant Error of Variance
2.4 Tests on Multicollinearity
2.5 Tests on Nonlinearity
2.6 Model Specification
2.7 Issues of Independence
2.8 Summary
-
Chapter 3 - Regression with Categorical Predictors
3.0 Regression with Categorical Predictors
3.1 Regression with a 0/1 variable
3.2 Regression with a 1/2 variable
3.3 Regression with a 1/2/3 variable
3.4 Regression with multiple categorical predictors
3.5 Categorical predictor with interactions
3.6 Continuous and Categorical variables
3.7 Interactions of Continuous by 0/1 Categorical variables
3.8 Continuous and Categorical variables, interaction with 1/2/3 variable
3.9 Summary
-
Chapter 4 - Beyond Ordinary Least Squares Regression
-
Chapter 5 - Additional coding systems for categorical variables in regression
analysis
4.1 Simple Coding
4.2 Forward Difference Coding
4.3 Backward Difference Coding
4.4 Helmert Coding
4.5 Reverse Helmert Coding
4.6 Deviation Coding
4.7 Orthogonal Polynomial
Coding
4.8 User-Defined Coding
4.9 Summary
