TABLE 1.

Results of confirmatory factor analysis of the measurement models (N = 251).

Measurement Models	χ 2(df)	Δχ 2(Δ df)	CFI	IFI	TLI	RMSEA
Model 1: Four-factor	463.86 (183)**		0.91	0.92	0.89	0.08
Model 2: Three-factor (combined CCB and negative affect into one factor)	655.65 (186)**	191.79 (3)**	0.69	0.69	0.65	0.10
Model 3: Three-factor (combined CSE and employee creativity into one factor)	564.08 (186)**	100.22 (3)**	0.75	0.75	0.72	0.09
Model 4: Two-factor (combined CCB and negative affect into one factor, and combined CSE and employee creativity into one factor)	754.38 (188)**	290.52 (5)**	0.62	0.63	0.58	0.11
Model 5: One-factor (combined all items into one factor)	1,099.50 (189)**	635.64 (6)**	0.39	0.40	0.32	0.14

CFI, comparative fit index; IFI, incremental fit index; TLI, Tucker–Lewis index; RMSEA, root mean square error of approximation; CCB, compulsory citizenship behavior; CSE, creative self-efficacy. CCB and negative affect were measured at Time-1; CSE and employee creativity were measured at Time-2. All alternative models were compared with the four-factor model; **p < 0.01.