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Chapter 17: Correlation Analysis
Oftentimes in business research, the researcher is interested in determining whether there is any association (relationship) between two or more variables and, if so, the researcher would like to know the strength of the association and the nature of the limitations of the χ2 test as an association measure. In this entry we discuss the more commonly used measure of association – the correlation coefficient. Correlation analysis involves measuring the strength of the relationship between two variables. For example, the correlation coefficient provides a measure of the degree to which there is an association between two variables (X and Y).
The Pearson correlation coefficient measures the degree to which there is a linear association between two internally scaled variables. A positive correlation reflects ...