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Example 12
The path diagram for either of the two samples should now look something like this:
Results for Model B
Text Output
Because of the additional constraints in Model B, four fewer parameters have to be
estimated from the data, increasing the number of degrees of freedom by 4.
The chi-square fit statistic is acceptable.
The chi-square difference between Models A and B, , is not
significant at any conventional level, either. Thus, Model B, which specifies a
group-invariant factor pattern, is supported by the Holzinger and Swineford data.
Computation of degrees of freedom: (Default model)
Number of distinct sample moments: 42
Number of distinct parameters to be estimated: 22
Degrees of freedom (42 – 20): 20
Chi-square = 18.292
Degrees of freedom = 20
Probability level = 0.568
spatial
visperc
cubes
lozenges
wordmean
paragrap
sentence
err_v
err_c
err_l
err_p
err_s
err_w
verbal
1
cube_s
lozn_s
1
sent_v
word_v
1
1
1
1
1
1
18.292 16.480 1.812=–