Table 5 Graded Response Model slope (a) and location (b) parameters for items comprising the 8-item ISS
From: Unpacking the impact of chronic pain as measured by the impact stratification score
Slope | Location parameters | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Item | a | b1 | b2 | b3 | b4 | b5 | b6 | b7 | b8 | b9 | b10 |
1. Chores | 1.94 | -0.76 | 0.56 | 1.89 | 2.87 | ||||||
2. Stairs | 1.70 | -0.20 | 1.05 | 2.18 | 3.06 | ||||||
3. Walk15 | 1.93 | 0.40 | 1.35 | 2.29 | 3.10 | ||||||
4. Errands | 2.43 | 0.24 | 1.39 | 2.54 | 3.70 | ||||||
5. Interfere daily | 3.29 | -1.04 | 0.34 | 1.38 | 2.40 | ||||||
7. Interfere social | 3.16 | -0.08 | 0.83 | 1.69 | 2.42 | ||||||
8. Interfere chores | 3.83 | -0.58 | 0.56 | 1.44 | 2.13 | ||||||
9. Pain intensity | 1.79 | -2.79 | -1.61 | -0.73 | -0.08 | 0.45 | 0.97 | 1.64 | 2.49 | 3.63 | 4.66 |