TABLE 1.

Comparison of measurement models.

Structure	χ 2	df	χ 2/df	RMSEA	CFI	NNFI	Δχ 2(df)
Four-factor (baseline)	791.84	293	2.70	0.07	0.96	0.95
One-factor	2483.37	299	8.31	0.19	0.87	0.85	1691.53(6)
Three-factor	1263.11	296	4.27	0.12	0.93	0.92	471.27(3)
Five-factor	756.60	267	2.83	0.07	0.96	0.95	35.24(26)

RMSEA, root mean square error of approximation; CFI, comparative fit index; NNFI, non-normed fit index.