Table 2 Rasch analysis outcomes of person-item parameters for the Malay QIRC
| Â | Malay QIRC | |||
|---|---|---|---|---|
20-item Pilot (N = 105) | 19-item Final (N = 304) | |||
Parameters | Functional | Emotional | Functional | Emotional |
Item | ||||
 Total | 13 | 7 | 12 | 7 |
 Removed | – | – | Item 3 | – |
 Number | 1–13 | 14–20 | 1–12 | 13–19 |
Category | ||||
 Total | 5 | 5 | 4 | 5 |
 Collapsed | – | – | Category 3 | – |
 Ordered? | No | Yes | Yes | Yes |
Person reliability | 0.80 | 0.79 | 0.80 | 0.81 |
Person separation index | 1.98 | 1.93 | 2.01 | 2.06 |
Item reliability | 0.98 | 0.93 | 0.99 | 0.98 |
Item separation index | 6.62 | 3.77 | 10.45 | 6.45 |
Average infit, MnSq (z-std) | ||||
 Participant ability | 1.02 (0.0) | 0.98 (−0.3) | 0.99 (− 0.1) | 0.96 (− 0.2) |
 Item difficulty | 1.00 (0.0) | 1.01 (0.0) | 0.99 (− 0.2) | 1.02 (0.1) |
Average outfit, MnSq (z-std) | ||||
 Participant ability | 1.01 (0.0) | 0.98 (−0.3) | 1.00 (0.0) | 0.97 (−0.2) |
 Item difficulty | 1.01 (0.0) | 0.98 (−0.1) | 1.01 (− 0.1) | 0.97 (− 0.4) |