How is the Bartlett's Test of Sphericity used in factor analysis?
- It tests the assumption of equal variances
- It tests the assumption of linearity
- It tests the assumption of normality
- It tests the assumption that the variables are uncorrelated
Bartlett's Test of Sphericity is used in factor analysis to test the hypothesis that the variables are uncorrelated in the population. In other words, the population correlation matrix is an identity matrix. A significant test indicates that a factor analysis may be useful with your data.
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