Table 2 Item difficulty estimates with associated error estimates for each item
From: Psychometric assessment of HIV/STI sexual risk scale among MSM: A Rasch model approach
Item | Difficulty Estimate | Error Estimate | Infit Mean Square | Outfit Mean Square | Infit t | Outfit t |
|---|---|---|---|---|---|---|
Item 1 | -4.36 | 0.17 | 0.99 | 1.98 | -0.10 | 2.90 |
Item 2 | -1.80 | 0.13 | 1.15 | 1.18 | 2.40 | 1.70 |
Item 3 | 2.85 | 0.43 | 0.89 | 1.48 | -0.20 | 0.90 |
Item 4 | 1.24 | 0.24 | 1.05 | 0.77 | 0.30 | -0.40 |
Item 5 | 1.79 | 0.29 | 0.73 | 0.28 | -1.30 | -1.60 |
Item 6 | 0.48 | 0.19 | 0.95 | 0.71 | -0.40 | -0.90 |
Item 7 | 3.06 | 0.47 | 1.08 | 0.82 | 0.30 | -0.10 |
Item 8 | -0.20 | 0.16 | 1.08 | 1.31 | 0.80 | 1.40 |
Item 9 | -3.06 | 0.14 | 0.91 | 0.77 | -1.30 | -1.60 |