Business Commons^™

Correlation And Regression, Donal O'Brien, Pamela Sharkey Scott

Books/Book Chapters

A correlation is a measure of the linear relationship between two variables. It is used when a
researcher wishes to describe the strength and direction of the relationship between two
normally continuous variables. The statistic obtained is Pearson’s product-moment
correlation (r), and SPSS also provides the statistical significance of r. In addition, if the
researcher needs to explore the relationship between two variables while statistically
controlling for a third variable, partial correlation can be used. This is useful when it is
suspected that the relationship between two variables may be influenced, or confounded, byA correlation is a measure of the …