Table 7 Estimates of item measures and fit statistics from Rasch analysis (difficulty items only)
From: Psychometric properties of the Greek version of the NEI-VFQ 25
Item | Item number | ρ | Standard Error | Infit zstd | Outfit zstd |
|---|---|---|---|---|---|
Matching clothes | 12 | -0.77 | 0.16 | -0.70 | -2.50 |
Finding something | 7 | -0.58 | 0.15 | 1.90 | 1.30 |
See reaction | 11 | -0.58 | 0.15 | -0.10 | 0.50 |
Visit people | 13 | -0.43 | 0.14 | -1.30 | 0.40 |
Noticing objects | 10 | -0.27 | 0.13 | 1.90 | 1.00 |
Going down steps | 9 | 0.16 | 0.12 | 2.80 | 1.70 |
Reading signs | 8 | 0.18 | 0.12 | -0.10 | -0.20 |
See up-close | 6 | 0.34 | 0.11 | 0.90 | -0.20 |
Reading print | 5 | 0.74 | 0.11 | -1.10 | -0.80 |
See movies | 14 | 1.2 | 0.11 | -3.30 | -1.70 |