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Designing and Conducting Survey Research: A Comprehensive Guide, 4th Edition by Richard A. Parker, Louis M. Rea

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CHAPTER TWELVEREGRESSION AND CORRELATION

This chapter considers the relationship between two interval scale variables. With interval variables as both independent and dependent, the researcher is able not only to perform tests of statistical significance and measures of association but also to quantify the exact relationship with mathematical precision through the designation of a line or curve that represents the relationship. When the researcher’s interest is focused on the existence or strength of a relationship between two interval variables, tests of significance and measures of association may suffice. However, once such a relationship is found, the researcher will likely wish to predict the exact value of the dependent variable based ...

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