Bartlett's Test of Sphericity

Bartlett's Test of Sphericity is a statistical method used to determine whether the variables in a dataset are sufficiently related to justify using certain analysis techniques, like factor analysis. Specifically, it tests if the variables are uncorrelated (independent) or if there are meaningful relationships among them. If the test shows the variables are correlated, it suggests that data reduction or structure-detection methods are appropriate. A significant result indicates you can confidently proceed, as the variables share enough connection to uncover underlying patterns or factors.