Interaction Effects in Multiple Regression

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ISBN: 9780761927426 | 0761927425
Cover: Paperback
Copyright: 3/5/2003

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Interaction Effects in Multiple Regression has provided students and researchers with a readable and practical introduction to conducting analyses of interaction effects in the context of multiple regression. The new Second Edition will expand the coverage on the analysis of three-way interactions in multiple regression analysis.

Series Editor's Introduction
Preface
Chapter 1: Introduction
The Concept of Interaction
Simple Effects and Interaction Contrasts
Simple Effects
Interaction Contrasts
A Review of Multiple Regression
The Linear Model
Hierarchical Regression
Categorical Predictors and Dummy Variables
Predicted Values in Multiple Regression
Transformations of the Predictor Variables
Overview of Book
Chapter 2: Two-Way Interactions
Regression Models with Product Terms
Two Continuous Predictors
The Traditional Regression Strategy
The Form of the Interaction
Interpreting the Regression Coefficients for the Product Term
Interpreting the Regression Coefficients for the Component Terms
Significance Tests and Confidence Intervals
Multicollinearity
Strength of the Interaction Effect
A Numerical Example
Graphical Presentation
A Qualitative Predictor and a Continuous Predictor
A Qualitative Moderator Variable
A Continuous Moderator Variable
More Than Two Groups for the Qualitative Variable
Form of the Interaction
Summary
Chapter 3: Three-Way Interactions
Three Continuous Predictors
Qualitative and Continuous Predictors
A Continuous Focal Independent Variable
A Qualitative Focal Independent Variable
Qualitative Variables with More than Two Levels
Summary
Chapter 4: Additional Considerations
Selected Issues
The BiLinear Nature of Interactions for Continuous Variables
Calculating Coefficients of Focal Independent Variables at Different Moderator Values
Partialing the Component Terms
Transformations
Multiple Interaction Effects
Standardized and Unstandardized Coefficients
Metric Properties
Measurement Error
Robust Analyses and Assumption Violations
Within-Subject and Repeated-Measure Designs
Ordinal and Disordinal Interactions
Regions of Significance
Confounded Interactions
Optimal Experimental Designs and Statistical Power
Covariates
Control for Experimentwise Errors
Omnibus Tests and Interaction Effects
Some Common Misapplications
Interaction Models with Clustered Data and Random Coefficient Models
Continuous Versus Discrete Predictor Variables
The Moderator Framework Revisited
References
Notes
About the Authors

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Interaction Effects in Multiple Regression

Summary

Table of Contents

Supplemental Materials