sem latent observed

Hello, I am confused about what to do with the data set http://www.4shared.com/file/pz9nnOLQ/all_hospitals.html. This data set has 29 variables, of which we have to discard the variables ID, FTEequivalent and Size as they are unnecessary. From the remaining ones, we have four dependent...

Hello, Is it possible to include an observed (measured) variable in a structural equation model (SEM)? In different words: Must one only use latent variables in SEM? I have several latent variables, but one variable does not have multiple measures. Nevertheless, if it is technically...