12.2.2 - Correlation Matrix
When examining correlations for more than two variables (i.e., more than one pair), correlation matrices are commonly used. In Minitab Express, if you request the correlations between three or more variables at once, your output will contain a correlation matrix with all of the possible pairwise correlations. For each pair of variables, Pearson's r will be given along with the p value. The following pages include examples of interpreting correlation matrices.