Fit of the 20 item PsAQoL to the Rasch Model: Best and worst fitting items
| Item | Location | Residual | χ2 | p Value |
|---|---|---|---|---|
| Best | ||||
| I can’t do the things I want to do | −1.883 | −0.581 | 0.680 | 0.954 |
| It’s too much effort to go out and see people | 0.751 | 0.120 | 2.328 | 0.677 |
| I take it out on people close to me | 0.528 | 0.615 | 2.346 | 0.673 |
| I feel like a prisoner in my own home | 2.442 | 2.000 | 2.784 | 0.595 |
| I’m unable to join in activities with friends or family | 0.609 | 0.315 | 2.806 | 0.591 |
| Worst | ||||
| It takes me a long time to get going in the morning | −1.626 | −0.482 | 6.205 | 0.184 |
| I am easily irritated by other people | 0.912 | 1.418 | 6.333 | 0.176 |
| I have to keep stopping what I am doing to rest | −1.256 | −0.141 | 7.968 | 0.093 |
| I have to limit what I do each day | −1.960 | 0.561 | 8.240 | 0.083 |
| I often get angry with myself | −0.393 | 2.206 | 12.041 | 0.018 |