Table 2. CFA models’ goodness of fit for the FPQ-III, FPQ-SF and FPQ-9.

Model	SBχ2	df	p	RMSEA	RMSEA CI	CFI	SRMR
30-items three factors model
1. Without errors’ covariance	2336.55	402	< .001	0.097	0.093; 0.100	0.86	0.095
2. With 5 errors’ covariancea	1136.25	397	< .001	0.060	0.056; 0.065	0.95	0.075
20-items four factors model
3. Without errors’ covariance	660.91	164	< .001	0.077	0.071; 0.083	0.92	0.078
4. With 2 errors’ covarianceb	458.29	162	< .001	0.060	0.053; 0.066	0.95	0.063
9-items three factors model
5. Without errors’ covariance	63.32	24	< .001	0.057	0.040; 0.074	0.97	0.048
6. With 1 errors’ covariancec	43.60	23	.006	0.042	0.022; 0.061	0.98	0.037

Note.

a = covariances between items 8–11, 8–14, 11–14, 3–6 and 26–29

b = covariances between items 3–6 and 26–29

c = covariances between items 14–17.