Introduction: Significance Tests versus Measures of Association
A bivariate relationship involves the relationship between two variables. For example, if you conduct an investigation in which you study the relationship between GRE verbal test scores and college grade point average (GPA), you are studying a bivariate relationship.
There are numerous statistical procedures that you can use to examine bivariate relationships. These procedures can provide a test of statistical significance, a measure of association, or both. A test of statistical significance allows you to test hypotheses about the relationship between variables in the population. For example, the Pearson product moment correlation coefficient allows you to test the null hypothesis ...
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