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Example 19
The bootstrap has its own shortcomings, including the fact that it can require fairly
large samples. For readers who are new to bootstrapping, we recommend the Scientific
American article by Diaconis and Efron (1983).
The present example demonstrates the bootstrap with a factor analysis model, but,
of course, you can use the bootstrap with any model. Incidentally, don’t forget that
Amos can solve simple estimation problems like the one in Example 1. You might
choose to use Amos for such simple problems just so you can use the bootstrapping
capability of Amos.
About the Data
We will use the Holzinger and Swineford (1939) data, introduced in Example 8, for
this example. The data are contained in the file Grnt_fem.sav.
A Factor Analysis Model
The path diagram for this model (Ex19.amw) is the same as in Example 8.
E To request 500 bootstrap replications, from the menus, choose View > Analysis
Properties
.
spatial
visperc
cubes
lozenges
wordmean
paragraph
sentence
err_v
err_c
err_l
err_p
err_s
err_w
verbal
1
1
1
1
1
1
1
1
Example 19: Bootstrapping
Holzinger and Swineford (1939) Girls' sample
Model Specification