Table 4. Results from Unconditional and Conditional Models with SUDS and Craving Habituation as Predictors of Change in Likelihood of Substance Use Across Treatment.

Unconditional Model	B	SE	t	Average W-S SUDS	B	SE	t
Threshold	-2.96	0.59	-5.03***	Threshold	-2.54	0.67	-3.80***
Session	-0.26	0.11	-2.31*	Session	-0.26	0.11	-2.29*
				W-S SUDS	0.05	0.05	1.09
				W-S SUDS*Session	-0.01	0.01	-0.80
B-S SUDS	B	SE	t	Early W-S SUDS	B	SE	t
Threshold	-3.19	0.43	-7.50***	Threshold	-2.54	0.65	-3.91***
Session	-0.31	0.10	-3.03**	Session	-0.27	0.11	-2.39*
B-S SUDS	-0.08	0.02	-3.39***	W-S SUDS	0.01	0.02	0.26
B-S SUDS*Session	0.000	0.004	0.11	W-S SUDS*Session	0.00	0.004	-0.02
B-S Craving	B	SE	t	Late W-S SUDS	B	SE	t
Threshold	-3.13	1.03	-3.05**	Threshold	-3.24	0.36	-9.00***
Session	-0.37	0.11	-3.25***	Session	-0.31	0.10	-3.01**
B-S Craving	-0.01	0.03	-0.41	W-S SUDS	0.16	0.06	2.80**
B-S Craving*Session	-0.004	0.004	-0.99	W-S SUDS*Session	-0.01	0.01	-0.64

Note: B-S = between-session, PTSD = posttraumatic stress disorder, SUDS = Subjective Units of Distress Scale, W-S = within-session.

^*p < .05,

^**p < .01,

^***p < .001