From: Validation of a vision-related activity scale for patients with retinitis pigmentosa
Parameters | Â |
---|---|
Person | |
n Included | 1753 |
n Removed | 0 |
 Measure (logits) | 1.15 ± 1.10 |
 Infit MnSq | 1.05 ± 0.64 |
 Outfit MnSq | 1.04 ± 1.01 |
 Separation | 2.66 |
 Reliability | 0.88 |
Item | |
n Included | 19 |
n Removed | 0 |
 Measure (logits) | 0.00 ± 0.79 |
 Infit MnSq | 1.08 ± 0.47 |
 Outfit MnSq | 1.02 ± 0.47 |
 Separation | 24.43 |
 Reliability | 1 |
 Principal component analysis (eigenvalue in first contrast) | 3.3 |