Table 1.
Inter-rater reliability.
| Amplitude | Max cranial | Max caudal | Displacement | |||||
|---|---|---|---|---|---|---|---|---|
| ICC | p | ICC | p | ICC | p | ICC | p | |
| C2 | 0.999 | 0.000 | 0.998 | 0.000 | 0.999 | 0.000 | 0.998 | 0.000 |
| C3 | 0.999 | 0.000 | 0.999 | 0.000 | 0.999 | 0.000 | 0.999 | 0.000 |
| C4 | 1 | 0.000 | 0.999 | 0.000 | 1 | 0.000 | 0.999 | 0.000 |
| C5 | 1 | 0.000 | 0.999 | 0.000 | 0.999 | 0.000 | 0.999 | 0.000 |
| C6 | 0.998 | 0.000 | 0.997 | 0.000 | 0.998 | 0.000 | 0.996 | 0.000 |
| C7 | 0.992 | 0.000 | 0.980 | 0.000 | 0.993 | 0.000 | 0.998 | 0.000 |
For inter-rater reliability between two independent raters intraclass correlation coefficients (two-way mixed model, absolute agreement, average measures) were calculated for corrected velocity values in each cervical segment for amplitude, maximum cranial and caudal velocity and for the displacement.
max = maximum, ICC = intraclass correlation coefficient.