Table 4 Item difficulty, infit and outfit MNSQ statistics for each item of the PedsQLTM 4.0 Generic Core Scales and frequency response categories
Scale | Â | Â | Child self-report | Â | Â | Â | Â | Parent proxy-report | Â | Â | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | Â | Category frequency (%) | Â | Â | Â | Category frequency (%) | ||||||||
| Â | difficulty | infit | outfit | 0 | 1 | 2 | 3 | 4 | difficulty | infit | outfit | 0 | 1 | 2 | 3 | 4 |
Physical health | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   1. Hard to walk more than a block | -0.23 | 1.07 | 0.98 | 2 | 4 | 14 | 12 | 67 | -0.18 | 0.83 | 0.78 | 7 | 6 | 15 | 14 | 55 |
   2. Hard to run | 0.18 | 0.76 | 0.76 | 3 | 7 | 21 | 18 | 51 | 0.13 | 0.82 | 0.82 | 7 | 11 | 20 | 18 | 44 |
   3. Hard to do sports or exercises | -0.18 | 0.86 | 0.75 | 3 | 5 | 12 | 16 | 64 | -0.03 | 0.80 | 0.77 | 7 | 7 | 18 | 17 | 51 |
   4. Hard to lift something heavy | 0.71 | 0.99 | 1.03 | 8 | 11 | 29 | 21 | 31 | 0.23 | 0.99 | 1.04 | 7 | 9 | 26 | 22 | 36 |
   5. Hard to take a bath or shower | -1.01 | 2.01 | 1.63 | 4 | 1 | 2 | 3 | 90 | -0.04 | 1.60 | 1.32 | 20 | 2 | 6 | 5 | 67 |
   6. Hard to do chores around house | 0.40 | 1.26 | 1.22 | 8 | 7 | 20 | 20 | 45 | 0.20 | 1.00 | 1.01 | 9 | 10 | 20 | 20 | 41 |
   7. Hurt or ache | 0.13 | 0.95 | 0.95 | 3 | 4 | 23 | 21 | 50 | -0.09 | 0.94 | 1.06 | 3 | 7 | 23 | 19 | 48 |
   8. Low energy | -0.01 | 0.92 | 0.86 | 2 | 6 | 15 | 21 | 56 | -0.21 | 1.11 | 1.11 | 2 | 8 | 17 | 20 | 52 |
Emotional functioning | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   1. Feel afraid or scared | -0.30 | 1.01 | 1.0 | 4 | 4 | 25 | 23 | 44 | -0.37 | 1.05 | 1.06 | 3 | 5 | 22 | 23 | 47 |
   2. Feel sad or blue | -0.16 | 0.79 | 0.8 | 5 | 6 | 26 | 23 | 41 | -0.14 | 0.71 | 0.72 | 4 | 7 | 25 | 24 | 40 |
   3. Feel angry | 0.29 | 0.78 | 0.78 | 8 | 12 | 29 | 22 | 28 | 0.37 | 0.84 | 0.86 | 7 | 15 | 29 | 21 | 29 |
   4. Trouble sleeping | -0.34 | 1.34 | 1.24 | 9 | 7 | 12 | 17 | 55 | -0.23 | 1.26 | 1.21 | 8 | 7 | 17 | 18 | 51 |
   5. Worry about what will happen | 0.52 | 1.16 | 1.15 | 17 | 12 | 25 | 16 | 30 | 0.38 | 1.19 | 1.14 | 12 | 13 | 22 | 17 | 35 |
Social functioning | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   1. Trouble getting along with peers | 0.16 | 1.11 | 1.06 | 3 | 4 | 11 | 20 | 62 | 0.36 | 1.1 | 1.06 | 8 | 5 | 14 | 18 | 53 |
   2. Other kids not wanting to be friends | -0.20 | 0.87 | 0.8 | 2 | 3 | 9 | 17 | 70 | -0.14 | 0.84 | 0.79 | 4 | 5 | 8 | 19 | 63 |
   3. Teased | 0.11 | 1.06 | 1.04 | 2 | 3 | 15 | 17 | 63 | -0.04 | 1.1 | 1.09 | 4 | 5 | 12 | 20 | 59 |
   4. Doing things other peers do | 0.01 | 0.97 | 0.9 | 3 | 3 | 11 | 17 | 66 | -0.09 | 0.88 | 0.87 | 5 | 3 | 12 | 18 | 62 |
   5. Hard to keep up when play with others | -0.08 | 1.03 | 1.0 | 2 | 3 | 12 | 16 | 67 | -0.09 | 1.11 | 1.08 | 4 | 5 | 12 | 19 | 61 |
School functioning | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   1. Hard to concentrate | 0.16 | 0.98 | 0.95 | 5 | 7 | 22 | 23 | 43 | 0.33 | 0.97 | 0.93 | 10 | 9 | 20 | 22 | 38 |
   2. Forget things | 0.32 | 0.91 | 0.92 | 4 | 7 | 28 | 28 | 33 | 0.24 | 0.97 | 1.01 | 5 | 9 | 26 | 26 | 35 |
   3. Trouble keeping up with schoolwork | 0.18 | 0.95 | 0.9 | 7 | 7 | 20 | 23 | 44 | 0.43 | 0.94 | 0.9 | 13 | 10 | 20 | 17 | 40 |
   4. Miss school - not well | -0.39 | 1.08 | 1.03 | 3 | 4 | 14 | 19 | 60 | -0.68 | 1.12 | 1.02 | 4 | 3 | 9 | 18 | 66 |
   5. Miss school - doctor appointment | -0.27 | 1.19 | 1.15 | 4 | 5 | 16 | 18 | 58 | -0.32 | 1.07 | 1.15 | 5 | 3 | 16 | 19 | 57 |