Table 2.

Final Three-Factor Solution Rotated Loading Matrix for Anxiety Scale for Autism-Adults

Item	Factor 1 U	Factor 2 A	Factor 3 SA
7. I am anxious about unfamiliar things, people, or places (U)	0.691	−0.011	0.195
9. I worry about changes to my surroundings or my routine (U, N)	0.734	0.015	0.000
11. When I don't know what will happen, I can't do things (U)	0.586	0.170	−0.033
13. I need to be prepared before things happen (U)	0.865	−0.076	−0.098
18. I worry if I don't know what will happen, e.g., if plans change (U)	0.877	−0.036	−0.046
1. All of a sudden I feel really scared (A)	−0.034	0.685	−0.002
3. My heart suddenly starts to beat too quickly (A)	−0.163	0.770	0.019
6. I suddenly feel as if I can't breathe (A)	−0.107	0.884	−0.042
8. When I have a problem, I feel physically shaky (A)	0.182	0.536	0.070
15. I worry that something awful will happen to someone I am familiar with (A)	0.042	0.528	0.061
16. I suddenly start to physically shake or tremble (A)	−0.071	0.795	0.003
17. I suddenly become dizzy or faint (A)	0.082	0.691	−0.134
19. I worry that something bad will happen to me (U)	0.064	0.574	0.075
20. I suddenly shut down and become unable to think, speak, or do things (A, N)	0.146	0.547	−0.002
2. I worry what other people think of me (SA)	−0.374	0.030	0.890
4. I feel anxious in situations where I could make a mistake (SA)	0.259	0.041	0.573
5. I worry that I will do badly when I am being assessed (like work, college, interviews) (SA)	0.085	−0.045	0.749
10. I worry about making mistakes during social interactions (SA, N)	0.159	−0.015	0.689
12. I worry when I think I have not done as well as I hoped (SA)	0.195	−0.023	0.581
14. I feel anxious that I will make a fool of myself in front of people (SA)	−0.131	0.038	0.857

Bold values indicate allocated Factor.

A, Anxious Arousal; ASA-A, Anxiety Scale for Autism-Adults; N, new item; SA, Social Anxiety; U, Uncertainty.