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Example 12
Your path diagram should look something like this for the girls’ sample:
The boys’ path diagram is identical. Note, however, that the parameter estimates are
allowed to be different for the two groups.
Results for Model A
Text Output
In the calculation of degrees of freedom for this model, all of the numbers from
Example 8 are exactly doubled.
Computation of degrees of freedom: (Default model)
Number of distinct sample moments: 42
Number of distinct parameters to be estimated: 26
Degrees of freedom (42 – 26): 16
spatial
visperc
cubes
lozenges
wordmean
paragrap
sentence
err_v
err_c
err_l
err_p
err_s
err_w
verbal
1
1
1
1
1
1
1
1
Example 12: Model A
Factor analysis: Girls' sample
Holzinger and Swineford (1939)
Model Specification