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Example 22
Viewing the Scree Plot
EClick on the Specification Search toolbar.
EIn 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.
EClick 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.
EClick 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.