. 2020 Oct 30;24(1):33–41. doi: 10.1111/hex.13135

Table 4.

Fit statistics from PPOS confirmatory factor analysis

N = 321	Χ²; df (p) ^a	Χ²/df	RMSEA (90% CI)	TLI	CFI	IFI
2‐factor (15 items)	202.6; 87 (<0.001)	2.3	0.063 (0.052 − 0.075)	0.777	0.815	0.821
2‐factor (12 items)	128.6; 51 (<0.001)	2.5	0.068 (0.053 − 0.083)	0.815	0.857	0.861
2‐factor (10 items)	65.5; 32 (<0.001)	2.0	0.056 (0.035 − 0.075)	0.888	0.920	0.923
2‐factor modified ^b (10 items)	50.3; 31 (0.016)	1.6	0.043 (0.017 − 0.064)	0.934	0.955	0.956
One‐factor (10 items)	70.3; 34 (<0.001)	2.1	0.056 (0.037 − 0.075)	0.886	0.914	0.916
One‐factor modified ^b (10 items)	53.4; 33 (0.014)	1.6	0.042 (0.018 − 0.063)	0.935	0.952	0.954

CFI, comparative fix index; df, degrees of freedom; IFI, incremental fit index; RMSEA, root mean square error of approximation; TLI, Tucker‐Lewis fit index.

^{^a}

Yuan‐Bentler's scaled chi‐squared statistic.

^{^b}

Allowing the covariance of errors of items 6 and 7.