Table 2.

Test of Distress Tolerance as a Mediator in the Association between Posttraumatic Stress Symptom Severity and Marijuana Use Coping Motives

	ΔR2	t	β	sr2	p
Criterion Variable: Marijuana Use Coping Motives: Test of Path C
Step 1	.132				<.001
Marijuana Use		4.61	.36	.13	<.001
Step 2	.175				<.001
MMM-Enhancement		1.93	.16	.02	ns
MMM-Conformity		1.18	.09	.01	ns
MMM-Expansion		3.14	.26	.06	.002
MMM-Social		1.44	.12	.01	ns
Step 3	.071				<.001
PDS		3.92	.27	.10	<.001
Criterion Variable: Distress Tolerance: Test of Path A
Step 1	.001				ns
Marijuana Use		.28	.02	.00	ns
Step 2	.227				< .001
PDS		−6.39	−.47	.22	<.001
Criterion Variable: Marijuana Use Coping Motives: Tests of Paths B & C’
Step 1	.132				<.001
Marijuana Use		4.61	.36	.13	<.001
Step 2	.175				<.001
MMM-Enhancement		1.93	.16	.02	ns
MMM-Conformity		1.18	.09	.01	ns
MMM-Expansion		3.14	.26	.06	.002
MMM-Social		1.44	.12	.01	ns
Step 3	.153				<.001
PDS		1.63	.12	.01	ns
DTS		−4.51	−.33	.13	<.001

Note. Marijuana Use–marijuana use in past 30 days (MSHQ; Bonn-Miller & Zvolensky, 2009); MMM-Enhancement–Marijuana Motives Measure (Enhancement motives subscale); MMM-Conformity–Marijuana Motives Measure (Conformity motives subscale); MMM-Expansion Marijuana Motives Measure (Conformity motives subscale); MMM-Social Marijuana Motives Measure (Social motives subscale); MMM-Coping Marijuana Motives Measure (Coping motives subscale; Simons et al., 1998); PDS–Posttraumatic Diagnostic Scale total score (Foa, 1995); DTS Distress Tolerance Scale total score (Simons and Gaher, 2005); DTS -- Distress Tolerance Scale total score (Simons & Gaher, 2005).