Hello,

I use the function sem the following way
sem.mod <- sem(model, mod.cov, N=109) where the variables are modelled:

Z -> M
Z -> I
Z -> R
M <-> M
I <-> I
R <-> R
Z <-> Z

The output is
...

Normalized Residuals
Min. 1st Qu. Median Mean 3rd Qu. Max.
-7.3300 -0.2750 -0.2670 -0.1290 -0.0369 9.0300

Parameter Estimates
Estimate Std Error z value Pr(>|z|)
0.0021625 0.00017037 12.693 0 M <--- Z

Iterations = 13


In "Structural Equation Modeling With the sem Package in R" by John Fox is stated that there should be an output for each external variable.

Where is my fault, that I receive the output only for the first variable?


Thanks for your help,
Luba





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