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Table 4 Coefficient of variation for average smoothness/accuracy of performance

From: Harnessing smartphone technology and three dimensional printing to create a mobile rehabilitation system, mRehab: assessment of usability and consistency in measurement

Activity Name* Average smoothness/accuracy (Standard Deviation) % Coefficient of Variation (SD)
Day 1 Day 2 Day 3
Vertical bowl 394.2 (52.9) 376.7 (52.1) 357.5 (72.0) 13.0 (10.3)
Horizontal bowl 372.0 (231.8) 332.5 (78.5) 452.1 (280.4) 22.1 (19.6)
Vertical mug 357.8 (61.5) 373.0 (69.1) 361.1 (56.9) 14.5 (7.5)
Horizontal mug 375.5 (73.9) 368.2 (61.1) 398.8 (82.1) 13.8 (7.8)
Sip from mug 378.7 (88.2) 392.4 (63.7) 393.1 (80.5) 12.5 (10.2)
Quick twist mug 155.3 (121.6) 190.8 (152.3) 296.4 (374.5) 53.3 (34.3)
Slow pour 648.9 (82.5) 625.6 (41.2) 622.4 (39.6) 7.1 (4.8)
Walk with mug 1046.0 (127.2) 1063.4 (120.9) 1071.9 (128.4) 8.2 (3.8)
Quick tap āˆ’2.2 (105) 1.1 (95.5) 22.1 (64.4) āˆ’2.6 (121.2)
  1. *Note: Phone number is not included here because all participants had 100% accuracy with the phone number task making the CVā€‰=ā€‰0