Table 5.

Results of paired samples t-tests examining the effect of a CBT-Pilot group for SSD on psychological and health outcome measures

	Pre-Group		Post-Group		t(10)	p	Cohen’s d	Descriptor
	Mean	SD	Mean	SD
Somatic Symptom Severity	14.73	5.85	14.55	4.87	0.24	0.81	0.03	Decrease
Anxiety	8.55	4.70	7.82	4.85	0.67	0.52	0.15	Decrease
Depression	14.27	7.23	12.36	7.49	1.69	0.12	0.30*	Decrease
Perceived Stress	9.36	3.56	8.82	4.00	0.60	0.56	0.14	Decrease
Pain Disability	47.14	11.20	45.27	10.08	0.74	0.48	0.17	Decrease
Personal Control	19.00	3.59	19.40	2.95	− 0.32	0.75	− 0.12	Increase
Treatment Control	14.00	3.46	13.80	4.47	0.18	0.86	0.05	Decrease
Pain Self-Efficacy	21.13	7.26	23.13	8.53	− 0.72	0.49	− 0.25	Increase

Note. Sample size was n = 11 for all pre- and post-group outcome variables with the exception of the following: personal control (n = 10); treatment control (n = 10); pain self-efficacy (n = 8). * = small effect size