Table 3.

Model fit indices

Model	χ2	df	Δχ2	Δdf	CFI	TLI	RMSEA (90% CI)	SRMR
1. Partner problematic alcohol Use influencing actor IPV perpetration	43.95*	13			0.92	0.84	0.11 (0.07–0.14)	0.07
2. Direct feedback loop for actor-partner problematic alcohol use	42.81*	14	9.84*	1	0.93	0.86	0.10 (0.07–0.13)	0.06
3. Without actor-partner effects	81.73*	16	39.86**	2	0.84	0.73	0.14 (0.11–0.17)	0.09

Note: χ² = χ-squared statistic; df = degrees of freedom; CFI = Comparative Fit Index; TLI = Tucker–Lewis Index; RMSEA = Root-Mean Square Error of Approximation; SRMR = Standardised Root-Mean Squared Residual; IPV = Intimate partner violence. The Δχ² represents the Satorra–Bentler scaled chi-squared difference, as is recommended for comparisons of models using the maximum likelihood robust estimator. The Δχ² and Δdf values presented in-line with Model 2 represent the comparison between Model 1 and Model 2; the Δχ² and Δdf values in-line with Model 3 represent the comparison between Model 2 and Model 3.

^*p < .05.

^**p < .01.