Table 5.

Results of Multivariate Cholesky Decompositions Estimating the Sharing of Causal Influences on Youth-Reported Delinquency at 14–17 Years With Mother-Reported Conduct Problems at 4–13 Years (Series 1)

	SB χ2	df	RMSEA	SB Δχ2	df	P	BIC
Model 1: Quantitative sex differences	766.9	438	.060	-	-	-	48527
Model 2: Scalar sex differences	836.9	463	.062	58.9	25	<.001	48478
Model 3: A for adolescent delinquency not shared with earlier agesa	793.0	444	.062	26.9	6	<.001	48515
Model 4: C for adolescent delinquency not shared with earlier agesa	800.1	444	.062	797.8	6	<.001	48510
Model 5: E for adolescent delinquency not shared with earlier agesa,c	770.3	446	.059	3.7	8	.88	48469
Model 6: No unique A for adolescent delinquencyb	770.4	440	.060	3.4	2	.18	48511
Model 7: Retains 2 genetic factors (A1 and A2)	777.4	444	.060	6.8	4	.15	48480
Model 8: Retains 1 genetic factor	807.9	450	.062	29.4	6	<.001	48475
Saturated Model	600.41	340	.061	178.0	104	<.001	48993
Null Model	4040.1	480	.189	2096.2	36	<.001	52879

Note: Models in this series are defined in the Results section under the heading, Series 1. Models 2–6 were compared to Model 1. Model 7 was compared to Model 6 and Model 8 was compared to Model 7. For reference, Model 7 was compared to a saturated model that imposed no constraints on the variances and covariances, and to a null model in which all covariances were constrained to 0.

^aModel drops all genetic (A), shared environment (C), or non-shared environment (E) influences that mother-reported conduct problems at ages 10–13 share with Youth-reported delinquency at ages 14–17.

^bModel drops genetic factor specific to youth-reported delinquency at ages 14–17.

^cAdditive genetic influences unique to delinquency at age 14–17 were fixed at values estimated in Model 2 to obtain valid standard errors.