Table 2 Individual item fit residual for final Rasch analysis of the Acceptance, Coping and Integration dimensions
From: Rasch analysis of the living with chronic illness scale in Parkinson’s disease
Item (response categories) | Location | Standard Error | Fit Residual | Chi-Square (df = 4) | Probability |
|---|---|---|---|---|---|
Acceptance | |||||
1. I get upset every time I think I have PD (0–3) | − 0.459 | 0.104 | 0.972 | 6.775 | 0.148 |
3. I get angry when having PD symptoms (0–4) | 0.238 | 0.081 | −0.962 | 7.341 | 0.119 |
4. It bothers me to change the way I live and sacrifice important things in my life because of PD (0–4) | 0.221 | 0.081 | 0.515 | 3.181 | 0.528 |
Coping | |||||
5. I try to cope and fight the diesase | −0.220 | 0.081 | 0.289 | 3.274 | 0.35127 |
6. I am interested in looking for things that motivate me not to focus only in PD (0–3) | 0.204 | 0.082 | 0.516 | 4.614 | 0.20237 |
7. I try to see the positive side of PD (0–3) | 0.123 | 0.079 | 2.01 | 10.159 | 0.01726 |
9. (younger age). I hope the situation with PD improves (0–3) | −0.329 | 0.098 | −0.524 | 8.202 | 0.04202 |
9. (older age). I hope the situation with PD improves (0–3) | 0.124 | 0.087 | −1.448 | 5.796 | 0.12197 |
10. I have someone who listens to me and understands what I am living with PD (0–3) | 0.099 | 0.080 | 1.352 | 1.427 | 0.69931 |
Integration | |||||
16. I have integrated PD in my daily living and all things related to it (0–3) | −0.148 | 0.084 | 1.786 | 5.225 | 0.265 |
17. Despite PD, I lead a life as normal as possible (0–3) | −0.240 | 0.085 | −1.035 | 15.345 | 0.004 |
19. I am as interested and I have the same illusion in leisure activities as before having PD (0–3) | 0.414 | 0.085 | 0.483 | 5.393 | 0.249 |
20. Although I have PD I feel satisfied with my life (0–4) | −0.026 | 0.073 | −0.281 | 2.269 | 0.686 |