. Author manuscript; available in PMC: 2015 Feb 1.

Published in final edited form as: Assessment. 2011 Nov 14;21(1):67–72. doi: 10.1177/1073191111425856

Table 1. Model Fit Indexes for the Unidimensional, First-Order Three Orthogonal Factor, Second-Order Three-Factor, and Other Models.

Model	Number of items	χ² (df)	χ²/df	BIC	GFI	CFI	RMSEA
Unidimensional	19	605.3(170)	3.56	718.28	.78	.79	.10
First-Order Three Orthogonal Factor	19	790.5(168)	4.71	914.74	.78	.70	.11
Second-Order Three-Factor	19	454.7(165)	2.76	595.96	.85	.86	.08
Second-Order Three-Factor Three-Category Calibration	16	164.9(101)	1.63	362.60	.93	.95	.05

Note. CFA = confirmatory factor analysis; BIC = Bayesian information criteria; GFI = graduated fit index, CFI = comparative fit index; RMSEA = root mean square error of approximation