Table 1 Intra-individual classification and reliability of each VES-13
VES-13 question | VAS for comprehension | Test-retest reliability | ||
|---|---|---|---|---|
median [interquartile range] | Reliability coefficients (p) | |||
Item 1 | 8.0 | [8–9] | 1.000 | (<0.001) |
Item 2 | 8.0 | [8–9] | 0.736 | (<0.001) |
Item 3a | 8.0 | [8–9.25] | 0.771 | (<0.001) |
Item 3b | 8.0 | [8–9.25] | 0.612 | (<0.001) |
Item 3c | 8.0 | [8–9.25] | 0.906 | (<0.001) |
Item 3d | 8.0 | [8–9.25] | 0.792 | (<0.001) |
Item 3e | 8.5 | [8–9.25] | 0.938 | (<0.001) |
Item 3f | 8.5 | [8–9.25] | 0.823 | (<0.001) |
Item 4a | 8.5 | [8–9.25] | 0.911 | (<0.001) |
Item 4b | 8.5 | [8–9.25] | 1.000 | (<0.001) |
Item 4c | 8.5 | [8–9.25] | 0.831 | (<0.001) |
Item 4d | 8.5 | [8–9.25] | 1.000 | (<0.001) |
Item 4e | 8.5 | [8–9.25] | 1.000 | (<0.001) |
VES-13 Total Score | - | 0.924 | (<0.001) | |