TABLE 3.

Model comparisons.

							χ2
Model	df	AIC	BIC	ΔAIC	ΔBIC	−2LL	Value	df	P
Model 1	9	8751.5	8813.3			−4366.8
Model 2	10	8741.0	8809.6	–10.5	–3.7	−4360.5	12.52	1	< 0.001*
Model 3	12	8744.8	8827.2	3.8	17.6	−4360.4	0.17	2	0.919
Model 4	14	8743.0	8839.1	–1.8	11.9	−4357.5	5.78	2	0.056
Model 5	20	8720.2	8857.5	–22.8	18.4	−4340.1	34.84	6	< 0.001*

ΔAIC, ΔBIC, and χ² values indicate the change in goodness of fit between each subsequent model. *p < 0.05.