Table 4.

Two-Part Semicontinuous Growth Model for Marijuana Use: Fixed Effects

	Part 1:			Part 2:
	Use versus nonuse			Quantity of use
	B	S.E.	β	B	S.E.	β
Prediction to latent intercept
Intercept of latent intercept	0	NA		−0.76	0.46
Antisocial behavior and deviant peers	1.32**	0.43	0.39	0.51	0.34	0.23
Depressive symptoms	0.29	0.39	0.09	0.60*	0.25	0.27
Parental monitoring	−0.60	0.36	−0.18	−0.21	0.24	−0.09
Parent marijuana use	0.60*	0.28	0.18	0.25	0.23	0.11
Peer substance use	1.09**	0.34	0.32	0.86**	0.32	0.38
Prediction to latent slope
Intercept of latent slope	0.86***	0.15		0.73***	0.14
Antisocial behavior and deviant peers	−0.30	0.16	−0.55	0.19	0.13	0.54
Depressive symptoms	−0.09	0.15	−0.17	−0.33**	0.11	−0.92
Parental monitoring	0.12	0.16	0.22	0.03	0.08	0.08
Parent marijuana use	0.03	0.12	0.06	−0.11	0.08	−0.32
Peer substance use	−0.20	0.15	−0.38	−0.12	0.13	−0.34
Change score prediction to outcome
Antisocial behavior and deviant peers	0.06	0.20	0.01	0.56***	0.16	0.15
Depressive symptoms	−0.17	0.16	−0.05	0.11	0.15	0.04
Parental monitoring	−0.57**	0.18	−0.16	−0.10	0.15	−0.04
Parent marijuana use	0.12	0.16	0.03	−0.21	0.14	−0.06
Peer substance use	0.89***	0.25	0.23	0.64**	0.21	0.20

Note: The intercepts of the outcome for Part 2 and the intercept of the intercept of Part 1 are fixed to 0.

^*p < .05.

^**p < .01.

^***p < .001.