Table 5.

Model fit results for prose recall

Model	Description	-2LL	Parameters	A-2LL	Adf	p	AIC	BIC
1	ACE	−4619	29	-	-		9296.00	9455.00
2	AE	−4621.31	26	2.31	3	0.510	9294.63	9437.18
3	AE (Quadratic effects removed)	−4622.48	24	1.17	2	0.558	9292.96	9424.55
4	AE (Linear effects removed)	−5095.82	22	473.34	2	0.000	10235.64	10356.26

Notes. A=additive genetic variance; C=shared environmental variance; E=nonshared environmental variance; −2LL=log likelihood; Δ−2LL=difference in −2LL between models being compared; Δdf=difference in degrees of freedom between models being compared; p=probability; AIC=Akaike Information Criterion; BIC=Bayesian Information Criterion