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Example
25
Multiple-Group Analysis
Introduction
This example shows you how to automatically implement Sörbom’s alternative to
analysis of covariance.
Example 16 demonstrates the benefits of Sörbom’s approach to analysis of
covariance with latent variables. Unfortunately, as Example 16 also showed, the
Sörbom approach is difficult to apply, involving many steps. This example
automatically obtains the same results as Example 16.
About the Data
The Olsson (1973) data from Example 16 will be used here. The sample moments can
be found in the workbook UserGuide.xls. Sample moments from the experimental
group are in the worksheet Olss_exp. Sample moments from the control group are in
the worksheet Olss_cnt.
About the Model
The model was described in Example 16. The Sörbom method requires that the
experimental and the control group have the same path diagram.