March 2016
Beginner to intermediate
232 pages
12h 12m
English
Content preview from Exploratory Factor Analysis with SASBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Application
What Does Bootstrapping Look Like?
Now that we are familiar
with the syntax, let us review an example of the use and application
of bootstrap resampling. Remember that EFA is a complex procedure
with lots of effects. It can have many communalities, eigenvalues,
and factor loadings. So although it does not take a terribly long
time with modern computers (it took our computer about 2 minutes to
run 2000 bootstrap analyses and save them to a data file), the process
that takes the longest is examining all the different parameters one
wants to examine.
The analyses in Chapter 3 indicated that the engineering data had two small, clear factors. The sample was relatively small, however, so we could ask whether it is likely that the two-factor ...
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