From: Posterior shoulder tightness; an intersession reliability study of 3 clinical tests
 | ICC value (95% confidence interval) | Standard error of measurement (SEM) (Degrees) | Minimum Detectable Change (MDC) (Degrees) |
---|---|---|---|
Horizontal adduction | 0.883 (0.802–0.932) | 3.7 | 10.2 |
Internal rotation in 90 degrees abduction | 0.869 (0.753–0.928) | 4.8 | 13.3 |
Low Flexion | 0.857 (0.745–0.919) | 3.5 | 9.7 |
• Two-way mixed effects model where people effects are random and measures effects are fixed. • Type A intraclass correlation coefficients using an absolute agreement definition. • The estimator is the same, whether the interaction effect is present or not. • Minimum Detectable Change (MDC) \( =1.96\times \sqrt{2}\times SEM \) [36] |