Table 4a/4b.

	4a. Step 1: Race		4b. Step 2: Race + SES
	Race		Race		SES
Alcohol	p	${\eta }_p^2$	p	${\eta }_p^2$	p	${\eta }_p^2$
Initial Use	<.01	.012	.05	.008	.22	.003
Initial to Regular	.01	.012	.46	.001	<.01	.023
Regular Use	.55	.001	.32	.002	<.01	.016
Regular to Problem	.05	.007	.53	.001	<.01	.023
Problem Use	.05	.007	.96	.000	<.01	.037
Problem to Treatment	<.01	.061	<.01	.040	.12	.001
Treatment	<.01	.021	<.01	.023	.06	.012
Marijuana
Initial Use	<.01	.042	<.01	.059	<.01	.032
Initial to Regular	.28	.004	.14	.041	.73	.018
Regular Use	<.01	.034	<.01	.049	.04	.016
Regular to Problem	.16	.006	.21	.006	.42	.002
Problem Use	<.01	.053	<.01	.068	.05	.014
Problem to Treatment	.01	.030	.04	.026	.22	.009
Treatment	<.01	.078	<.01	.077	.87	.000
Cocaine
Initial Use	<.01	.027	<.01	.034	.06	.031
Initial to Regular	.60	.001	.89	.000	.57	.001
Regular Use	<.01	.018	<.01	.027	.11	.006
Regular to Problem	.11	.005	.32	.002	.16	.005
Problem Use	.16	.004	.03	.010	<.01	.017
Problem to Treatment	<.01	.081	<.01	.056	.65	.001
Treatment	<.01	.076	<.01	.077	.58	.001

p-values ≤ .05 are shown in bold