Skip to content
Prev 165553 / 398506 Next

Simulating dataset using Parallel Latent CTT model?

Nidhi,



Presumably, you are trying to simulate 20 items all sharing one 
general factor but having some error.

The model as you specified it has no error.  Thus all the 
correlations will be 1 and the factors will not make any sense.

Most items have loadings on a general factor of  the  order of about 
.4 to .6.  You might try:

GenData <- congeneric.sim(N=500, loads = rep(.5,20), short = FALSE)
Then you will find that the factor scores  found by factor.pa 
correlate at .93 with the latent variable.
Bill
At 8:27 AM -0500 12/26/08, Nidhi Kohli wrote: