Other Indices of Fit - Bollen's Delta

This index is also similar in form to the Bentler-Bonnet index, but rewards simpler models (those with higher degrees of freedom). It is computed as:

(130)

= degrees of freedom for the k'th model.

= the discrepancy function for the "Null Model"

= the discrepancy function for the k'th model

N = sample size

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