Table 3.

Model Description and Fit Indices of the Confirmatory Factor Analysis (CFA) Models

Item Coding	Estimator	Model	Model Fit Indices
Item Coding	Estimator	Model	χ² (df), p	CFI	TLI	RMSEA [90% CI]	WRMSR	AIC	BIC (ABIC)
5-point scale	WLSMV	1	821.94 (54), < .001	.91	.89	.19 [.18, .20]	2.72	---	---
		2^*	94.95 (39), < .001	.99	.99	.06 [.05, .08]	0.60	---	---
		3	41.85 (25), .019	.99	.99	.04 [.02, .06]	0.43	---	---
		4	---	---	---	---	---	---	---
		5	---	---	---	---	---	---	---
		6	460.91 (23), < .001	.95	.94	.14 [.13, .15]	1.78	---	---
		7	---	---	---	---	---	---	---
		8	---	---	---	---	---	---	---
	MLR	1	---	---	---	---	---	9901.89	10139.08 (9948.71)
		2	---	---	---	---	---	9300.16	9596.66 (9358.69)
		3						7897.61	8134.80 (7944.43)
		4	---	---	---	---	---	---	---
		5	---	---	---	---	---	---	---
		6	---	---	---	---	---	9641.14	9882.28 (9688.74)
		7	---	---	---	---	---	---	---
		8	---	---	---	---	---	---	---
Binary	WLSMV	1	334.65 (54), < .001	.954	0.943	.12 [.10, .13]	1.98	---	---
		2^*	37.80 (39), .524	1	1	.00 [.00, .03]	0.46	---	---
		3^*	22.02 (25), .635	1	1	.00 [.00, .04]	0.41
		4	---	---	---	---	---	---	---
		5	---	---	---	---	---	---	---
		6	174.76 (53), < .001	.98	.98	.08 [.07, .09]	1.32	---	---
		7	---	---	---	---	---	---	---
		8	---	---	---	---	---	---	---
	MLR	1	3887.35 (4057), .972	---	---	---	---	4064.14	4159.01 (4082.87)
		2^*	1939.74 (4042), > .999	---	---	---	---	3838.21	3992.39 (3868.65)
		3	---	---	---	---	---	---	---
		4	---	---	---	---	---	---	---
		5	---	---	---	---	---	---	---
		6	3068.48 (4054), > .999	---	---	---	---	3955.01	4053.85 (3974.52)
		7	---	---	---	---	---	---	---
		8	---	---	---	---	---	---	---

Note. Models that do not include fit statistics did not converge in Mplus or an error prevented the model from computing;

^{* =}

Model converged but produced an Mplus warning against interpreting model estimates.

Bolded Models = Best-fitting models; WLSMV = Weighted least square mean and variance; MLR = Maximum likelihood with robust standard errors; CFA = comparative fit index; TLI = Tucker-Lewis index; RMSEA = root mean square error of approximation; WRMSR = Weighted root mean square residual; AIC = Akaike information criterion; BIC = Bayesian information criterion; Model 1: CPTSD one-factor (unidimensional); Model 2: six correlated first-order factors; Model 3: five correlated first-order factors (CPTSD interpersonal items removed); Model 4: one second-order CPTSD factor, six first-order factors; Model 5: two second-order factors (PTSD, DSO), six first-order factors; Model 6: first-order two-factors (PTSD, DSO); Model 7: two-factor second-order model with PTSD measured by 6 Items and DSO by three first-order factors; Model 8: two-factor second-order model with PTSD measured by three first-order factors and DSO by 6 items.