Table 1 Item fit statistics
From: Evaluation of the Edinburgh Post Natal Depression Scale using Rasch analysis
Item | Location | SE | FitResid | DF | ChiSq | DF | Prob |
|---|---|---|---|---|---|---|---|
1. I have been able to laugh and see the funny side of things | 1.067 | 0.125 | -0.993 | 281.46 | 3.26 | 4 | 0.515 |
2. I have looked forward with enjoyment to things | 2.429 | 0.125 | -0.315 | 280.57 | 2.62 | 4 | 0.623 |
3. I have blamed myself unnecessarily when things went wrong | -1.958 | 0.094 | 1.958 | 280.57 | 13.52 | 4 | 0.009 |
4. I have been anxious or worried for no good reason | -1.456 | 0.089 | 0.843 | 281.46 | 4.62 | 4 | 0.329 |
5. I have felt scared or panicky for no very good reason | -0.541 | 0.094 | 0.794 | 281.46 | 15.84 | 4 | 0.003 |
6. Things have been getting on top of me | -1.069 | 0.109 | -1.162 | 279.67 | 8.10 | 4 | 0.088 |
7. I have been so unhappy that I have had difficulty sleeping | 0.118 | 0.104 | -0.935 | 281.46 | 5.34 | 4 | 0.255 |
8. I have felt sad or miserable | -0.407 | 0.103 | -3.275 | 281.46 | 17.55 | 4 | 0.002 |
9. I have been so unhappy that I have been crying | 0.133 | 0.112 | -2.364 | 281.46 | 7.86 | 4 | 0.097 |
10. The thought of harming myself has occurred to me | 1.684 | 0.174 | 0.349 | 281.46 | 4.15 | 4 | 0.386 |