SAS question

#1
Hi all, I was stuck on the following. I explained it below, my approach, and would appreciate any help. Thanks so much.

1) T/F: Common factors estimated using maximum likelihood estimation with a PROMAX rotation are orthogonal.

ANSWER: This is FALSE since PROMAX requires: "With principal component analysis and rotation: You can do an oblique rotation first (oblimin, promax), and examine the component correlation matrix. When should I use rotated component with varimax and when to use maximum likelihood with promax In case of factor analysis?. Available from: https://www.researchgate.net/post/W...lihood_with_promax_In_case_of_factor_analysis [accessed May 25, 2017]."



2) T/F: Common factors estimated using Iterated Principal Factor Analysis with a VARIMAX rotation are orthogonal.


ANSWER: This is TRUE since "Varimax rotation is orthogonal rotation in which assumption is that there is no intercorrelations between components." https://www.researchgate.net/post/W...lihood_with_promax_In_case_of_factor_analysis




Please advise. I'm confused if this changes anything, but would really appreciate any feedback. Thanks
 
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