Table 2.

Reliability estimates (n = 60) with pooled test-retest mean, range and inter-rater reliability, test-retest reliability, standard error of measurement (SEM), minimal detectable change (MDC) and effect size for single items (1–5) and sum score (3–15)

Item	Mean (SD)	Range	ICC inter-rater (95% CI)	ICC test-retest (95% CI)	SEM	MDC
Lifting an object to a shelf	1.87 (0.98)	1–5	0.66 (0.35–0.82)	0.59 (0.40–0.73)	0.61	1.69
Putting on a jacket	1.94 (0.98)	1–5	0.71 (0.42–0.85)	0.55 (0.35–0.71)	0.62	1.72
Moving an arm sideways	3.00 (1.15)	1–5	0.75 (0.61–0.84)	0.84 (0.75–0.90)	0.45	1.25
SAS sum score	6.81 (2.38)	l3–12	0.80 (0.51–0.90)	0.74 (0.58–0.84)	1.19	3.30