. Author manuscript; available in PMC: 2010 Mar 1.

Published in final edited form as: J Anxiety Disord. 2008 Jul 12;23(2):212–217. doi: 10.1016/j.janxdis.2008.07.002

Table 3.

Summary of multiple regressions of fear, courage, and their interaction on behavioral approach.

T1 Multiple Regression
	R²	R² Δ	Sig. Δ		β	b	t	p
Step 1	.252	.252	.031	SBQ	−.403	−0.57	−1.68	.106
				SPQ	−.132	−0.14	−0.55	.578

Step 2	.295	.040	.245	SBQ	−.419	−0.59	−1.76	.092
				SPQ	−.064	−0.07	−0.26	.797
				T1 CM	.217	0.12	1.19	.245

Step 3	.354	.059	.399	SBQ	−.382	−0.54	−1.56	.133
				SPQ	−.106	−0.11	−0.43	.673
				T1 CM	.076	0.04	0.37	.719
				SBQ × T1 CM	.214	0.02	0.65	.526
				SPQ × T1 CM	.075	0.01	0.24	.816

T2 Multiple Regression
Step 1	.247	.247	.025	SBQ	−.387	−0.54	−1.65	.111
				SPQ	−.146	−.0.16	−0.62	.540

Step 2	.425	.178	.010	SBQ	−.400	−.0.56	−1.90	.069
				SPQ	−.042	0.05	0.19	.852
				Time 2 CM	.451	0.23	2.66	.014

Step 3	.436	.011	.807	SBQ	−.362	−0.51	−1.61	.123
				SPQ	.056	−0.06	−0.24	.811
				T2 CM	.408	0.21	2.13	.045
				SBQ × T2 CM	.067	0.01	0.30	.765
				SPQ × T2 CM	.074	0.01	0.32	.753

Notes: SPQ: Spider Phobia Questionnaire, SBQ: Spider Beliefs Questionnaire, T1 CM: Courage Measure from Time 1 (initial pretesting), T2 CM Courage Measure from Time 2 (immediately prior to behavioral approach task).