What Is Variance Inflection Factor? Table Of Contents: What Is the Variance Inflection Factor? The Problem Of Multicollinearity? Testing For Multicollinearity? Formula For VIF. Interpretation Of VIF. Why Use VIFs Rather Than Pairwise Correlations? Example Of Calculating VIF. (1) What Is Variance Inflection Factor? Variance Inflection Factor is used to measure, how much the variance of the beta estimates has inflected due to multicollinearity issue. A variance inflation factor (VIF) provides a measure of multicollinearity among the independent variables in a multiple regression model. Detecting multicollinearity is important because while multicollinearity does not reduce the explanatory power of the model,

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