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Hello, If this is a repeat post, please forgive me but I do not see a message I posted last Friday. In addition to checking scree plots, and performing parallel analyses to determine number of factors to extract, I also check various fit indices. When using WLSMV, I use the RMSEA, CFI, TLI, chisquare and SRMR fit stats. There are times when I might try a ULS estimator. To my knowledge, no other package except CEFA produces RMSEA or chisquare when using ULS. I note that ULSMV produces all the fit stats produced when using WLSMV. I have checked the technical appendices. Except for a description of how ULSMV computes df, I can find no other reference to how ULSMV works. Aside from the calculation of df, are there any differences between ULSMV and ULS that I should take note of, or should the two provide identical results. Thank you! 


ULS and ULSMV will give the same parameter estimates. ULS does not give standard errors or fit statistics. Only ULSMV does that. 


Hi, I am trying to locate where is the formula for USLMV estimator in EFA. I did not find it in the technical material dowloaded from the website. I am curious to know if it is similar to the one for the so called "ALPHA" FACTOR EXTRACTION (see e.g. Mac Callum et al., 2007, equation 9.4 p. 170). I run a factor analysis problem both under SPSS (EXTRACTION = ALPHA/ROTATION = PROMAX), and under MPLUS (ESTIMATOR = ULSMV, ROTATION = GEOMIN, CATEGORICAL), and obtained almost the same results. So, I am wondering whether these two estimator are sort of equivalent, and if ULSMV in MPLUS allows you to perform the Kaiser's ALPHA factor analysis 


Appendix 4 of the Version 2 Tech appendices that we post on our web site at http://www.statmodel.com/download/techappen.pdf shows the formulas (105) (108) which are relevant to ULSMV with W=I. I am not familiar with Kaiser's alpha method  you may want to ask on SEMNET. 


thank you so much Benght best Claudio 

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