. Author manuscript; available in PMC: 2013 Jan 1.

Published in final edited form as: Sci Stud Read. 2012 Jan 9;16(5):457–474. doi: 10.1080/10888438.2011.599902

Table 3.

Multivariate Cholesky Model-fitting Results

Model	-2LL	df	AIC	-2LL_Δ
ACE	17995.84	7488	3019.84	—
Drop all A covariance paths	18050.21	7491	3068.21	54.37 (3)^*
Drop only a₃₂ path	17996.03	7489	3018.03	0.19 (1)
Drop all C covariance paths	18026.58	7491	3044.58	30.74 (3)^*
Drop only c₃₃ path	17995.94	7489	3017.94	0.10 (1)
Drop all E covariance paths	18100.67	7491	3118.67	104.83 (3)^*
Drop only e₃₂ path	18015.22	7489	3037.22	19.38 (1)^*
Drop only a₃₂, c₃₃, and e₃₂ paths	18021.85	7491	3039.85	26.01 (3)^*
Drop only a₃₂ and c₃₃ paths	17996.31	7490	3016.31	0.47 (2)

Note: The best-fitting model is presented in bold type. A = additive genetic effects; C = shared environmental effects; E = non-shared environmental effects; AIC = Akaike Information Criterion; -2LL_Δ = difference in -2LL estimate between the ACE model and the reduced model.

p < .05.