Table 5. Results from Unconditional and Conditional Models with SUDS and Craving Habituation as Predictors of Change in Percent Days Use (PDU) of Any Substances for Participants Using Substances.

Unconditional Model	B	SE	t	Average W-S SUDS	B	SE	t
Intercept	51.57	4.52	11.42***	Intercept	50.10	4.81	10.41***
Session	-1.69	0.61	-2.76**	Session	-1.66	0.63	-2.62**
				W-S SUDS	0.10	0.44	0.23
				W-S SUDS*Session	-0.06	0.09	-0.74
B-S SUDS	B	SE	t	Early W-S SUDS	B	SE	t
Intercept	47.57	4.89	9.72***	Intercept	50.22	4.80	10.47***
Session	-1.71	0.59	-2.90**	Session	-1.69	0.62	-2.75**
B-S SUDS	-0.35	0.16	-2.17*	W-S SUDS	0.03	0.19	0.16
B-S SUDS*Session	0.02	0.02	0.70	W-S SUDS*Session	-0.01	0.03	-0.46
B-S Craving	B	SE	t	Late W-S SUDS	B	SE	t
Intercept	46.72	5.09	9.19***	Intercept	48.85	5.15	9.48***
Session	-1.61	0.65	-2.49*	Session	-1.76	0.65	-2.73**
B-S Craving	-0.12	0.18	-0.67	W-S SUDS	-0.04	0.42	-0.09
B-S Craving*Session	0.04	0.02	1.80	W-S SUDS*Session	-0.01	0.06	-0.17

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