Table 2: IRT parameters for the 9-item modified version of the 5-item Pain and 6-item Other Symptoms subscales from the Arthritis Self-efficacy scales (ASE).

Itemab1b2b3b4b5b6b7b8b9

1
2 −0.13
3 0.32
4 0.05
5
6 0.30
7 −0.21
8 0.05
9
10
11