Table 6 Estimates of item measures and fit statistics from Rasch analysis
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 | -1.07 | 0.14 | 0.00 | -0.20 |
Finding something | 7 | -0.92 | 0.13 | 0.10 | -0.30 |
See reaction | 11 | -0.92 | 0.13 | 2.20 | 2.00 |
Visit people | 13 | -0.82 | 0.12 | -0.70 | -1.30 |
Noticing objects | 10 | -0.7 | 0.11 | -0.70 | -0.90 |
Eye pain | 4 | -0.42 | 0.10 | -2.30 | -3.00 |
Going down steps | 9 | -0.41 | 0.10 | -1.80 | -2.10 |
Reading signs | 8 | -0.4 | 0.10 | -0.20 | -0.50 |
See up close | 6 | -0.29 | 0.09 | 0.30 | -0.20 |
Overall eyesight | 2 | -0.1 | 0.09 | -6.90 | -6.60 |
Reading print | 5 | -0.03 | 0.09 | 2.70 | 2.60 |
Overall health | 1 | 0.15 | 0.08 | 5.80 | 5.40 |
Worry about eyesight | 3 | 0.2 | 0.09 | -1.20 | -0.90 |
See movies | 14 | 0.24 | 0.09 | 6.90 | 6.80 |
Limited | 18 | 0.32 | 0.09 | 1.30 | 1.60 |
Accomplish less | 17 | 0.32 | 0.09 | -0.40 | 0.30 |
Stay home | 20 | 0.44 | 0.09 | 1.10 | 1.40 |
Feel frustrated | 21 | 0.48 | 0.09 | 1.20 | 0.90 |
Less control | 22 | 0.69 | 0.10 | 0.00 | 0.40 |
Need help | 24 | 0.71 | 0.10 | -2.90 | -1.60 |
Eye discomfort | 19 | 0.72 | 0.10 | -0.70 | -0.10 |
Rely too much | 23 | 0.88 | 0.11 | 0.60 | 0.60 |
Embarrass myself | 25 | 0.94 | 0.11 | -0.60 | 0.00 |