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Table 6 Internal consistency and test-retest reliability of the British English MAP-Hand [Classical Testing]

From: Measure of activity performance of the hand (MAP-Hand) questionnaire: linguistic validation, cultural adaptation and psychometric testing in people with rheumatoid arthritis in the UK

  Cronbach’s alpha n for test-retest Test 1 score
Mean [SD]
Test 2 score
Mean [SD]
ICC(2,1)
(95% CI)
MAP-Hand 0.96 273 17.61 [11.65] 17.08 [11.53] 0.96 (0.94,0.97)