Table 1 Fit of data to the Rasch model.
| Item | Person | Chi Square Interaction | PSI |
Unidimensional t-tests (Confidence intervals) | ||||
|---|---|---|---|---|---|---|---|---|
| Analysisμ | Mean | SD | Mean | SD |
Value (df) | p | ||
| 1 | 0.102 | 3.111 | -0.533 | 1.730 |
312.1 (126) | 0.000 | 0.906 |
11.68% (10–13%) |
| 2 | 0.102 | 2.084 | -0.504 | 1.555 |
178.9 (99) | 0.000 | 0.879 |
9.15% (8–11%) |
| 3 | 0.143 | 1.580 | -0.491 | 1.448 |
114.2 (85) | 0.009 | 0.872 |
7.03% (6–9%) |
| 4 | 0.080 | 1.794 | -0.472 | 1.295 |
87.19 (63) | 0.023 | 0.840 | 4.17%* |
| 5 | 0.065 | 1.341 | -0.475 | 1.222 |
64.70 (54) | 0.151 | 0.845 | 4.18%* |
| 6 | 0.126 | 0.681 | -0.472 | 1.223 |
41.1 (54) | 0.901 | 0.837 | 4.77%* |
| 7 | 0.113 | 1.436 | -0.437 | 1.194 |
56.5 (54) | 0.382 | 0.854 |
5.15% (3–7%) |
| 8 | 0.078 | 2.036 | -0.540 | 1.743 |
208.7 (126) | 0.000 | 0.903 |
11.77% (10–13%) |
| 9 | 0.262 | 2.372 | -0.472 | 1.656 |
233.3 (126) | 0.000 | 0.910 |
10.67% (9–12%) |