John Fox wrote: > Dear Sebastian, > > What you're looking for are factor-score coefficients, which would allow you > to estimate the values of the factors from the observed variables. Then, > given the original dataset from which the input-covariance matrix to sem() > was computed, you could find the factor scores. The sem packages doesn't > provide factor-score coefficients, but this is a reasonable request, and > I'll add it to my to-do list. I can't promise when I'll get this done. > > I'm not sure why you want the means, standard deviations, and correlations > of the latent variables. In most models, the means will be 0. You could > figure out the covariance matrix of the latent variables; sem()doesn't > provide that either.
I was looking at Piccolo, R. F. & COLQUITT, J. A. TRANSFORMATIONAL LEADERSHIP AND JOB BEHAVIORS: THE MEDIATING ROLE OF CORE JOB CHARACTERISTICS Academy of Management Journal, 2006, 49, 327-34 and other articles using SEM and they provide those factor-score coefficents. (pdf for article here: http://www.ximb.ac.in/~jgeorge/transforjobbehavior.pdf , table on p.8) I have never published an SEM model before, so I assume it is standard to provide those. Anyway, thank you for your hint, and thanks for putting it on your TODO list. I am amazed by the speed you were replying, much appreciated. I have just ordered another of your books :-). Sebastian Spaeth ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
