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Thread: SAS question

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    SAS question

    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/Wh...actor_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/Wh...actor_analysis

    Please advise. I'm confused if this changes anything, but would really appreciate any feedback. Thanks
    Last edited by maryjkluther23; 05-26-2017 at 01:18 AM. Reason: more effort

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