Table 3.
Interrater Intraclass Correlation Coefficients and Measurement Error Scores for the Goniometric and Trigonometric Techniques
| Interrater, Examiner 1 Versus Examiner 2 |
Intraclass Correlation Coefficient (2,1) (95% Confidence Interval) |
Standard Error of Measurement |
Coefficient of Variance, % |
| Day 1 | |||
| Goniometric technique | 0.65 (0.20, 0.85) | 3 | 34 |
| Trigonometric technique | 0.91 (0.76, 0.97) | 2 | 24 |
| Day 2 | |||
| Goniometric technique | 0.30 (−0.75, 0.71) | 5 | 36 |
| Trigonometric technique | 0.94 (0.85, 0.97) | 2 | 26 |