AVE calculation under CFA

Comments

• EJ

  January 23

  I'll forward this to our experts.

  Cheers,

  E.J.
• Kucharssim

  January 23

  Hi @MaBH,

  The AVE is calculated by the package semTools, from its documentation (https://search.r-project.org/CRAN/refmans/semTools/html/AVE.html) we can read that the AVE is calculated as

  

  Now I don't have enough intuition to confirm that that is the same as calculating the average of the squared standardized factor loadings.

  From your screenshots, I can't calculate the AVE by hand, as I am missing the covariance matrix of the factors, and the implied covariance of the indicators (alternatively the covariance matrix of the residuals). However, if I try to do the calculations by hand using the formula above in some random datasets, the results match the one of JASP.

  Hope this helps.

  Cheers,

  Simon
• MaBH

  January 31

  Hi Simon,

  Thanks a lot for the clarification!

  I think the approach I was using is the original formula proposed in Fornell & Larcker (1981) while the semTools package adopts a more generalized formula, which does not impose any assumptions on factor variance.

  Thanks a lot for helping me with the concepts, as I have learned something meaningful from this. 😀

  Best Regards,

  Bohao