Correlation and Regression

Applications for Industrial Organizational Psychology and Management

"This book provides one of the clearest treatments of correlations and regression of any statistics book I have seen. . . . Bobko has achieved his objective of making the topics of correlation and regression accessible to students. . . . For someone looking for a very clearly written treatment of applied correlation and regression, this book would be an excellent choice." --Paul E. Spector, University of South Florida "As a quantitative methods instructor, I have reviewed and used many statistical textbooks. This textbook and approach is one of the very best when it comes to user-friendliness, approachability, clarity, and practical utility." --Steven G. Rogelberg, Bowling Green State University

Indeed, as we shall see, adding product terms to regressions produces some
pretty wondrous examples that increase the flexibility of our social science
models. The Interactive Model Suppose we had started with one criterion. 10 In
other words, a person can have all the ability in the universe. But if his or her
motivation is zero, then predicted performance is still zero. The product term says
this is equally true if motivation is high but ability is completely zero. 1 Actually,
appraisers use ...