Table 2. Item characteristics of the revised CCSS-NCQ.
| Item | Contents | aa | Threshold 1b | bc | Threshold 2b |
|---|---|---|---|---|---|
| Memory | |||||
| BRIEF-A 26 | Trouble staying on the same topic when talking | 0.676 | -2.293 | -1.337 | -0.381 |
| BRIEF-A 55 | People say I am easily distracted | 0.753 | -1.878 | -1.074 | -0.270 |
| NCQ 13 | Forget what I am doing in the middle of things | 1.255 | -1.660 | -0.700 | 0.260 |
| BRIEF-A 35 | Short attention span | 0.691 | -1.692 | -0.652 | 0.388 |
| NCQ 5 | Forgets instructions easily | 1.599 | -1.373 | -0.503 | 0.367 |
| NCQ 20 | Trouble remembering things even for a few minutes | 1.750 | -0.934 | -0.154 | 0.626 |
| NCQ 7 | Difficulty recalling things I learned before | 1.372 | -1.087 | -0.034 | 1.019 |
| NCQ 24 | Difficulty solving math problems in my head | 0.669 | -0.626 | 0.403 | 1.432 |
| Task efficiency | |||||
| NCQ 14 | Problems with self-motivation | 1.174 | -2.107 | -1.232 | -0.357 |
| NCQ 6 | Problems completing my work | 1.627 | -2.043 | -1.187 | -0.331 |
| NCQ 21 | Trouble prioritizing | 1.284 | -1.913 | -1.041 | -0.169 |
| NCQ 16 | Easily overwhelmed | 1.101 | -1.699 | -0.784 | 0.131 |
| NCQ 17 | Trouble multi-tasking | 1.397 | -1.492 | -0.726 | 0.040 |
| NCQ 23 | Slower than others completing work | 1.494 | -1.347 | -0.608 | 0.131 |
| NCQ 2 | Takes longer to complete work | 1.620 | -1.294 | -0.473 | 0.348 |
| NCQ 25 | Doesn't work well under pressure | 1.310 | -1.023 | -0.296 | 0.431 |
| Organization | |||||
| BRIEF-A 40 | Leave the bathroom a mess | 0.846 | -2.498 | -1.494 | -0.490 |
| BRIEF-A 71 | Trouble organizing work | 1.277 | -2.048 | -1.227 | -0.406 |
| BRIEF-A 66 | Problems organizing activity | 1.093 | -1.907 | -1.122 | -0.337 |
| NCQ 19 | Desk/workspace a mess | 1.315 | -1.756 | -1.003 | -0.250 |
| NCQ 12 | Trouble finding things in bedroom | 0.939 | -1.850 | -0.910 | 0.030 |
| NCQ 4 | Disorganized | 1.359 | -1.533 | -0.648 | 0.237 |
| BRIEF-A 60 | Leave my room or home a mess | 1.534 | -1.303 | -0.459 | 0.385 |
| BRIEF-A 7 | Messy closet | 1.027 | -1.009 | -0.288 | 0.433 |
| Emotional regulation | |||||
| BRIEF-A 19 | Emotional outburst for little reason | 1.691 | -1.737 | -1.096 | -0.455 |
| BRIEF-A 1 | Have angry outbursts | 0.995 | -2.207 | -1.01 | 0.187 |
| BRIEF-A 33 | Overreact to small problems | 1.552 | -1.686 | -0.868 | -0.050 |
| BRIEF-A 28 | React more emotionally to situations than my friends | 1.244 | -1.575 | -0.823 | -0.071 |
| NCQ 9 | Moods changes frequently | 1.196 | -1.627 | -0.805 | 0.017 |
| BRIEF-A 12 | Overreact emotionally | 1.505 | -1.418 | -0.593 | 0.232 |
| NCQ 1 | Gets upset easily | 1.377 | -1.480 | -0.474 | 0.532 |
| NCQ 8 | Gets frustrated easily | 1.335 | -1.244 | -0.290 | 0.664 |
Note:
a
The discrimination (a) parameter describes how strongly an item is related to the latent trait.
b
The threshold values indicate the extent of the latent trait covered by the item.
c
The location (b) parameter describes how easy or difficult it is for a subject to endorse an item.