Larry D. D. Schroeder & David L. L. Sjoquist 
Understanding Regression Analysis [EPUB ebook] 
An Introductory Guide

Series Editor’s Introduction
Preface
Acknowledgments
About the Authors
1. Linear Regression
Introduction
Hypothesized Relationships
A Numerical Example
Estimating a Linear Relationship
Least Squares Regression
Examples
The Linear Correlation Coefficient
The Coefficient of Determination
Regression and Correlation
Summary
2. Multiple Linear Regression
Introduction
Estimating Regression Coefficients
Standardized Coefficients
Associated Statistics
Examples
Summary
3. Hypothesis Testing
Introduction
Concepts Underlying Hypothesis Testing
The Standard Error of the Regression Coefficient
The Student’s t Distribution
Left-Tail Tests
Two-Tail Tests
Confidence Intervals
F Statistic
What Tests of Significance Can and Cannot Do
Summary
4. Extensions to the Multiple Regression Model
Introduction
Types of Data
Dummy Variables
Interaction Variables
Transformations
Prediction
Examples
Summary
5. Problems and Issues Associated With Regression
Introduction
Specification of the Model
Variables Used in Regression Equations and Measurement of Variables
Violations of Assumptions Regarding Residual Errors
Additional Topics
Conclusions
Appendix A: Derivation of a and b
Appendix B: Critical Values for Student’s t Distribution
Appendix C: Regression Output From SAS, Stata, SPSS, R, and EXCEL
Appendix D: Suggested Textbooks
References
Index

Stephan′s research interests focus on the careers of scientists and engineers and the process by which knowledge moves across institutional boundaries in the economy. Stephan currently serves on the National Research Council Board on Higher Education and Workforce. She served on the National Advisory General Medical Sciences Council, National Institutes of Health, 2005-2009 and served on the Advisory Committee of the Social, Behavioral, and Economics Program, National Science Foundation, 2001-2008. She was a member of the European Commission High-Level Expert Group that authored the report ‘Frontier Research: The European Challenge.’ She has served on a number of National Research Council committees including the committee on Dimensions, Causes, and Implications of Recent Trends in the Careers of Life Scientists, Committee on Methods of Forecasting Demand and Supply of Doctoral Scientists and Engineers, and the Committee on Policy Implications of International Graduate Students and Postdoctoral Scholars in the United States. Her research has been supported by the Alfred P. Sloan Foundation, the Andrew W. Mellow Foundation, and the National Science Foundation. Dr. Stephan graduated from Grinnell College (Phi Beta Kappa) with a B.A. in Economics and earned both her M.A. and Ph.D. in Economics from the University of Michigan. She has been a visiting scholar at Katholeike Universiteit Leuven, Belgium, spring 2005, a Wertheim Fellow, Harvard University, February 2007, and an ICER fellow, Turin, Italy, fall 2009, spring 2011, and fall 2011. She has also been a visiting scholar at the Department of Economics, Cognetti de Martiis, University of Torino, spring 2011 and fall 2011.
Stephan is a research associate, National Bureau of Economic Research.
Stephan has published numerous articles in journals such as The American Economic Review, Science, The Journal of Economic Literature, Economic Inquiry, The International Economic Review and Social Studies of Science. She co-wrote, with Sharon Levin, Striking the Mother Lode in Science (Oxford University Press, 1992).