Table 4 Individual item fit statistics for the DASS Anxiety/Stress Subscale (final model)
From: Rasch model analysis of the Depression, Anxiety and Stress Scales (DASS)
No. | Item | Scale | Location value | SE | Fit Resid | ChiSq | Prob |
|---|---|---|---|---|---|---|---|
1 | I found it hard to wind down | S | -0.960 | 0.068 | 1.195 | 3.738 | 0.443 |
4 | I experienced breathing difficulty | A | 0.636 | 0.082 | 0.289 | 2.077 | 0.722 |
6 | I tended to over-react to situations | S | -0.439 | 0.069 | -0.138 | 3.421 | 0.490 |
7 | I experienced trembling (e.g. in the hands) | A | 0.633 | 0.082 | -1.310 | 3.083 | 0.544 |
8 | I felt that I was using a lot of nervous energy | S | -0.133 | 0.069 | -2.026 | 8.704 | 0.069 |
9 | I was worried about situations in which I might panic and make a fool of myself | A | 0.105 | 0.070 | -0.134 | 2.664 | 0.616 |
12 | I found it difficult to relax | S | -0.603 | 0.070 | -2.686 | 10.091 | 0.039 |
14 | I was intolerant of anything that kept me from getting on with what I was doing | S | -0.092 | 0.073 | 1.011 | 9.837 | 0.043 |
18 | I felt that I was rather touchy | S | -0.419 | 0.070 | -0.835 | 7.606 | 0.107 |
19 | I was aware of the action of my heart in the absence of physical exertion | A | 0.471 | 0.077 | 0.310 | 4.659 | 0.324 |
20 | I felt scared without any good reason | A | 0.802 | 0.085 | -1.759 | 5.025 | 0.285 |