Table 4.

Goodness of Fit Statistics for Structural Equation Models

	Goodness of Fit Index	Comparative Fit Index	χ2	df	P
Model 1: 3 independent latent cognition variables	0.779	0.779	186.903	98	<.0001
Model 2: 3 covarying latent cognition variables	0.866	0.866	107.891	95	.1726
Model 3: 1 latent cognition variable	0.851	0.851	120.703	102	.0997
Comparisons of model fit
Model 1 vs Model 2					<.0001
Model 1 vs Model 3					<.0001
Model 2 vs Model 3					.0768