Raters ICC(1.1) 95% CI ICC(3.1) 95% CI Sw SDD
Intra-rater            
A1-A2 0.94 0.87-0.97 0.97 0.94-0.99 1.6 4.4
B1-B2 0.99 0.98-0.99 0.99 0.97-1.00 0.7 2.0
C1-C2 0.96 0.92-0.98 0.97 0.93-0.99 1.1 3.2
Inter-rater            
A1-B1 0.97 0.94-0.99 0.97 0.94-0.99 1.0 2.9
A1-C1 0.97 0.93-0.99 0.97 0.93-0.99 1.1 3.2
B1-C1 0.99 0.97-0.99 0.99 0.97-0.99 0.8 2.3
A1-B1-C1 0.98 0.95-0.99 0.98 0.95-0.99 1.0 2.8
A1, B1, C1 refer to the first scores of the three raters. A2, B2, C2 refer to the second scores (four weeks later). ICC: intraclass correlation coefficient. CI: confidence interval. Sw: within subject standard deviation. SDD: smallest detectable difference for 95% of pairs of observations.
Table 3: Intra- and inter-rater reliability of the total score of the Mini-BESTest for the participants (n=24).