Table 5 Summary of Item statistics for FAPSI-81
FAPSI Item | N | Avg. Item Calibration (logits/s.e.) | Infit statistic (mean square) | Outfit Statistic (mean square) |
|---|---|---|---|---|
Worry condition gets worse | 271 | 0.93/0.05 | 1.13 | 1.15 |
Lack of energy | 271 | 0.52/0.06 | 0.92 | 0.95 |
Bone pain | 271 | 0.10/0.06 | 0.75 | 0.70 |
Difficulty urinating | 270 | -0.06/0.07 | 1.44 | 1.34 |
Urinating limits activities | 271 | -0.20/0.07 | 1.42 | 1.11 |
Pain | 270 | -0.24/0.07 | 0.77 | 0.67 |
Pain limits performance | 267 | -0.25/0.07 | 0.84 | 0.63 |
Weight loss | 271 | -0.84/0.10 | 1.36 | 1.28 |