. 2018 Dec 11;22(4):482–491. doi: 10.1093/ntr/nty262

Table 3.

Fit Indices From Exploratory, Confirmatory, and Measurement Invariance Models

	Exploratory analysis
Fit index	Pre-Quit n = 621		TQD n = 577		Post-Quit n = 567
	4-Factor	5-Factor	4-Factor	5-Factor	4-Factor	5-Factor
Model χ²	3363.06	2834.44	3612.24	3040.18	4319.99	3538.58
CFI	0.95	0.96	0.93	0.95	0.92	0.94
TLI	0.94	0.96	0.92	0.94	0.91	0.93
RMSEA	0.04	0.03	0.04	0.04	0.05	0.04
	Confirmatory analyses
	Pre-Quit n = 624		TQD n = 579		Post-Quit n = 569
	4-Factor	5-Factor	4-Factor	5-Factor	4-Factor	5-Factor
Model χ²	3470.28	3272.23	3518.91	3264.95	4094.04	3668.83
CFI	0.95	0.95	0.93	0.94	0.93	0.94
TLI	0.94	0.95	0.93	0.94	0.93	0.94
RMSEA	0.04	0.04	0.04	0.04	0.05	0.04
χ² Difference test	69.67, p < .001		80.10, p < .001		115.77, p < .001
	5-Factor model: Measurement invariance (n = 622)
		Configural		Full factor loading		Partial factor loading
Model χ²		19 812.36		20 074.87		19 800.30
CFI		0.94		0.94		0.94
TLI		0.94		0.94		0.94
RMSEA		0.02		0.02		0.02
χ² Difference test		N/A		346.06, p < .0001		93.71, p = .18

Standard interpretive conventions for model fit: CFI (>.90 is acceptable, >.95 is good), TLI (>.90 is acceptable, >.95 is good), and RMSEA (<.06 is good, >.10 is poor).³⁹ CFI = comparative fit index; Post-Quit = 1 week postquit; Pre-Quit = 1 week prequit; RMSEA = root-mean-square error of approximation; TQD = target quit date.

All Model χ²ps < .0001.