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The correlation value , when there are multiple independent variables is multiple correlation. It is the equivalent of Pearson correlation coefficient. It is denoted by R. In the case of multiple independent variables R is always positive. But Pearson correlation in the case of one independent variable is denoted by r and it can be positive or negative. Multiple correlation and Pearson correlation will have the same magnitude in the case of one independent variable.
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Jun 5th, 2015
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