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Factor Analysis with Structured Means
E
In the Object Properties dialog box, click the Parameters tab.
E Enter a parameter name, such as int_vis, in the Intercept text box.
E Select All groups, so that the intercept is named int_vis in both groups.
E Proceed in the same way to give names to the five remaining intercepts.
As Sörbom showed, it is necessary to fix the factor means in one of the groups at a
constant. We will fix the means of the boys’ spatial and verbal factors at 0. Example
13 shows how to fix the mean of a variable to a constant value.
Note: When using the Object Properties dialog box to fix the boys’ factor means at 0,
be sure that you do not put a check mark next to All groups.
After fixing the boys’ factor means at 0, follow the same procedure to assign names to
the girls’ factor means. At this point, the girls’ path diagram should look something
like this:
mn_s,
spatial
int_vis
visperc
int_cub
cubes
int_loz
lozenges
int_wrd
wordmean
int_par
paragrap
int_sen
sentence
0,
err_v
0,
err_c
0,
err_l
0,
err_p
0,
err_s
0,
err_w
mn_v,
verbal
1
cube_s
lozn_s
1
sent_v
word_v
1
1
1
1
1
1