Table 3.

Factor structure extracted–Efa.

ITEM	Extracted factors and loadings (n = 346)		h2
	COGNITIVE/AFFECTIVE	SOMATIC
Item 5. I felt like I was losing control.	0.664	−0.072	0.394
Item 24. I felt like I had no control over my life.	0.612	−0.080	0.328
Item 25. I felt like something terrible was going to happen to me.	0.576	0.007	0.336
Item 7. I was afraid of being humiliated or embarrassed.	0.557	−0.049	0.283
Item 6. I was afraid of being judged by others.	0.549	−0.076	0.261
Item 15. I felt detached or isolated from others.	0.531	−0.046	0.258
Item 13. I was easily startled or upset.	0.475	0.162	0.336
Item 19. I could not control my worry.	0.460	0.260	0.409
Item 4. I felt like things were not real or like I was outside of myself.	0.429	−0.042	0.166
Item 16. I felt like I was in a daze.	0.421	0.110	0.239
Item 11. I had outbursts of anger.	0.400	0.118	0.225
Item 14. I was less interested in doing something I typically enjoy.	0.325	0.082	0.141
Item 12. I had difficulty concentrating.	0.297	0.222	0.209
Item 10. I was irritable.	0.272	0.245	0.206
Item 8. I had difficulty falling asleep.	−0.061	0.672	0.411
Item 21. I felt tired.	−0.030	0.618	0.363
Item 9. I had difficulty staying asleep.	−0.059	0.594	0.318
Item 22. My muscles were tense.	0.048	0.576	0.364
Item 23. I had back pain. neck pain. or muscle cramps.	−0.054	0.516	0.239
Item 3. I had an upset stomach.	0.033	0.440	0.211
Item 20. I felt restless, keyed up, or on edge.	0.380	0.423	0.497
Item 18. I worried too much.	0.353	0.379	0.413
Item 2. My breath was short.	0.177	0.326	0.200
Item 1. My heart raced or beat strongly.	0.293	0.322	0.291
Item 17. I had a hard time sitting still.	0.183	0.232	0.133
% explained variance	0.162	0.127	0.289

h² is communality. All factor loadings of ≥ 0.30 are in bold; % of variance explained is in bold.