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Table 3 Results of the Test–retest reliability and the measurement error (N = 29)

From: Reliability and validity of the Shoulder Pain and Disability Index in a sample of patients with frozen shoulder

Scale

Test–retest reliability

Measurement error

ICC2,1 (95% CI)

SEM

MDC

Pain

subscale

0.989 (0.975–0.995)

2.27

6.27

Disability subscale

0.990 (0.988–0.998)

2.32

6.25

  1. CI Confidence interval, ICC Intraclass coefficient correlation, MDC Minimal detectable change, SEM Standard error of the measurement, % Percentage