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Example 22
Viewing the Scree Plot
E Click on the Specification Search toolbar.
E In the Plot window, select Scree in the Plot type group.
The scree plot strongly suggests that models with 15 parameters provide an optimum
trade-off of model fit and parsimony.
E Click the point with the horizontal coordinate 15. A pop-up appears that indicates the
point represents Model 22, for which the change in chi-square is 46.22.
E Click 22 (46.22) to display Model 22 in the drawing area.
Limitations
The specification search procedure is limited to the analysis of data from a single
group.