. Author manuscript; available in PMC: 2021 Mar 1.

Published in final edited form as: J Res Adolesc. 2019 May 16;30(1):126–141. doi: 10.1111/jora.12506

Table 4.

Model fit statistics for trivariate Cholesky models testing overlap in underlying genetic and environmental influences on attentional control, anxiety, and ADHD symptoms in adolescent twins

A. Primary model including attentional control, anxiety, and ADHD symptoms
Model	Factors	χ²(df)	p	CFI	TLI	RMSEA	Δχ² (df)	p
1	AES	84.30 (37)	<.001	.974	.976	0.042
2	AE	118.8 (39)	<.001	.942	0.948	0.062	36.3 (2)	<.001
B. Follow-up model-fitting, with ADHD replaced with symptoms of impulsivity/hyperactivity (models 3-4) and inattention (models 5-6)
Model	Factors	χ²(df)	p	CFI	TLI	RMSEA	Δχ² (df)	p
3	AES	75.08 (37)	<.001	.937	.949	0.064
4	AE	111.1 (39)	<.001	.881	.908	0.085	41.0 (2)	<.001
5	AES	79.2 (37)	<.001	.951	.960	0.067
6	AE	98.1 (39)	<.001	.931	.947	0.077	18.6 (2)	<.001

Note: A = additive genetics, E = non-shared environment, S = Sibling interaction; In each case, the AES model was the most parsimonious, best fitting model (i.e., Models 1, 3, and 5).