Table 3 Rasch model for the 23-item UJA Alzheimer’s care scale
Items | Difficulty (Standard error) | WMS (infit) | UMS (outfit) |
|---|---|---|---|
1 | 0.84 (0.09) | 1.07 | 1.12 |
2 | 1.36 (0.09) | 1.04 | 1.02 |
3 | 0.54 (0.09) | 1.12 | 1.22 |
4 | 0.94 (0.09) | 0.97 | 0.98 |
5 | −0.62 (0.11) | 1.00 | 0.88 |
6 | 0.02 (0.10) | 1.08 | 1.03 |
7 | 0.28 (0.09) | 1.02 | 1.01 |
8 | 1.42 (0.09) | 1.07 | 1.20 |
9 | −1.29 (0.14) | 0.90 | 0.70 |
10 | 1.35 (0.14) | 0.90 | 0.79 |
11 | −0.61 (0.11) | 0.99 | 1.25 |
12 | 0.47 (0.09) | 1.05 | 1.09 |
13 | 1.41 (0.09) | 0.99 | 1.00 |
14 | −2.12 (0.19) | 1.00 | 0.92 |
15 | 1.83 (0.09) | 0.96 | 1.02 |
16 | −1.73 (0.17) | 0.95 | 0.74 |
17 | −1.13 (0.13) | 0.99 | 1.10 |
18 | 0.88 (0.09) | 1.06 | 1.02 |
19 | −1.65 (0.16) | 0.95 | 0.95 |
20 | 1.22 (0.09) | 0.94 | 0.90 |
21 | −1.74 (0.17) | 0.95 | 0.68 |
22 | −1.39 (0.15) | 0.90 | 0.72 |
23 | 2.43 (0.10) | 1.01 | 1.12 |