Rarely is role playing viewed as the effective and useful coaching tool that it is. When set up and used correctly, role playing is one of the most helpful ways to train and develop your employees.
Correlation analysis is used primarily as a data exploration technique to reveal the degree of association in a set of matched data. This information can inform subsequent analyses of relationships between variables. In particular, correlation can indicate possible factors that confound a relationship of interest.
Correlation measures the closeness (link) of the relationship between two or many variables without knowing the functional relationships. In contrast, regression can show the form of the relationship of one independent variable with one dependent variable. The forms of the intrinsic linear relationship such as polynomial, exponential and logarithmic regression tend to have low correlation.