Table 4.

Effects of Attention Problems on Levels and Change in Substance Use

	Grade 11 level					Grades 8–11 slope
	b	SE	B	Z	p	B	SE	B	Z	p
Alcohol
Gender	−0.16	0.11	−0.09	−1.43	0.152	0.01	0.04	0.02	0.34	0.733
Intervention status	−0.06	0.09	−0.03	−0.65	0.514	−0.01	0.03	−0.01	−0.20	0.838
Conduct problems, Grade 6	0.88	0.30	0.27	2.96	0.003	−0.04	0.10	−0.04	−0.36	0.723
Slope attention problems	9.58	4.69	0.43	2.04	0.041	−1.70	1.25	−0.27	−1.37	0.171
Grade 6 attention problems level	0.92	0.39	0.18	2.38	0.017	−0.02	0.16	−0.02	−0.15	0.881
Marijuana
Gender	−0.06	0.16	−0.02	−0.36	0.720	0.02	0.05	0.04	0.47	0.639
Intervention status	−0.02	0.13	−0.01	−0.17	0.864	0.02	0.04	0.03	0.52	0.605
Conduct problems, Grade 6	0.98	0.42	0.25	2.35	0.019	0.00	0.13	0.00	0.00	0.999
Slope attention problems	13.95	6.79	0.50	2.06	0.040	0.33	1.42	0.05	0.23	0.816
Grade 6 attention problems level	1.54	0.56	0.24	2.74	0.006	−0.03	0.22	−0.02	−0.11	0.910
Cigarettes
Gender	−0.22	0.08	−0.183	−2.75	0.006	0.09	0.04	0.246	2.25	0.024
Intervention status	−0.09	0.06	−0.075	−1.64	0.100	−0.05	0.03	−0.13	−1.47	0.141
Conduct problems, Grade 6	0.22	0.16	0.109	1.38	0.169	−0.21	0.09	−0.36	−2.33	0.020
Slope attention problems	3.28	1.70	0.244	1.93	0.050	−2.57	1.21	−0.663	−2.12	0.034
Grade 6 attention problems level	1.32	0.39	0.404	3.41	0.001	−0.13	0.17	−0.139	−0.78	0.435

^*Coefficients in bold were significant, p < .05