. Author manuscript; available in PMC: 2019 Nov 20.

Published in final edited form as: Cognit Ther Res. 2018 Apr 23;42(5):720–734. doi: 10.1007/s10608-018-9915-8

Table 4.

Study 2 and 3 linear hierarchical regression analyses with: IBIP full scale scores, ‘intrusions’ subscale and ‘hypervigilance/avoidance’ subscale regressed on distress disorder symptom measures.

Predictor	Outcome Variable
	IBIP (full)			I Factor			H/A Factor
Study 2	β	p	sr²	β	P	sr²	β	p	sr²
Step 1
BDI-II	.29	<.001	.064	.25	.01	.034	.17	.03	.023
PSWQ	.43	<.001	.135	.25	.01	.035	.52	<.001	.180
Step 2
BDI-II	.07	.34	.004	.03	.76	<.001	.01	.9	.001
PSWQ	.22	<.01	.047	.04	.67	.001	.37	<.001	.101
PCL-C	.56	<.001	.287	.56	<.001	.200	.41	<.001	.147
Study 3	β	p	sr²	β	p	sr²	β	P	sr²
Step 1
BDI-II	.51	<.001	231	.48	<.001	.181	.43	<.001	.180
PSWQ	.15	.01	.026	−.03	.62	.001	.27	<.001	.080
Step 2
BDI-II	.13	.02	.018	.04	.59	.001	.17	.01	.022
PSWQ	.13	<.01	.031	−.08	.14	.007	.24	<.001	.072
PCL-C	.60	<.001	.308	.67	<.001	.295	.40	<.001	.132

Note. IBIP = 9-item Interpretation Bias Index for PTSD; I factor = 4-item IBIP ‘intrusions’ factor; H/A factor = 5-item IBIP ‘hypervigilance/avoidance’ factor; BDI-II = Beck Depression Inventory-II; PSWQ = Penn State Worry Questionnaire; PCL-C = PTSD Check List- Civilian Version.