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Table 2 Performance on the KCNT between test systems

From: Performance assessment on the Korean Computerized Neurobehavioral Test using a mobile device and a conventional computer: an experimental study

KCNT Type of system F-value p-value* Post-hoca
System 1 System 2 System 3 System 4
Mean (SD) Mean (SD) Mean (SD) Mean (SD)
SRT
 RTmean 391.0 (133.6) 381.1 (131.6) 532.7 (177.7) 510.3 (193.4) 150.670 < 0.001 (3 = 4) > (1 = 2)
 SDRT 71.5 (70.3) 72.2 (47.0) 115.0 (133.9) 123.1 (270.1) 2.528 0.098  
 RateCR 0.998 (0.010) 1.000 (0.004) 0.997 (0.010) 0.997 (0.011) 1.282 0.282  
CRT
 RTmean 590.6 (107.4) 593.0 (117.2) 750.4 (116.1) 691.9 (109.2) 171.785 < 0.001 3 > 4 > (2 = 1)
 SDRT 95.2 (35.6) 105.8 (53.6) 124.8 (58.0) 114.8 (47.2) 6.105 0.001 (3 = 4) > 1
 RateCR 0.994 (0.014) 0.994 (0.013) 0.991 (0.018) 0.996 (0.009) 1.714 0.176  
DA
 RTmean 2518.4 (534.1) 2498.6 (496.7) 2557.8 (463.4) 2513.2 (545.6) 1.068 0.364  
 SDRT 497.3 (320.6) 508.9 (351.1) 539.9 (287.2) 527.8 (375.8) 0.528 0.664  
 RateCR 0.865 (0.161) 0.852 (0.144) 0.870 (0.148) 0.862 (0.161) 0.403 0.751  
SDS
 RTmean 2016.7 (397.8) 2018.4 (339.2) 2013.3 (385.3) 2025.9 (364.8) 0.099 0.961  
 SDRT 534.4 (369.6) 534.1 (200.7) 616.9 (286.2) 612.1 (255.0) 2.624 0.058  
 RateCR 0.988 (0.023) 0.988 (0.020) 0.970 (0.042) 0.978 (0.036) 6.824 < 0.001 3 < (2 = 1)
FTS
 FTSD 72.0 (8.5) 72.3 (8.3) 71.3 (9.5) 72.0 (8.3) 1.053 0.350  
 FTSND 65.4 (8.9) 66.2 (9.2) 63.0 (9.4) 66.2 (9.0) 13.378 < 0.001 (2 = 4 = 1) > 3
  1. System 1 a desktop computer equipped with a conventional 106-key keyboard, System 2 a desktop computer equipped with a simplified 17-key keyboard, System 3 a tablet PC with an on-screen keyboard, System 4 a tablet PC equipped with a simplified 17-key keyboard, SD standard deviation, SRT simple reaction time, CRT choice reaction time, DA digit addition, SDS symbol-digit substitution, FTS finger tapping speed, RTmean mean reaction time, SDRT standard deviation of reaction time, RateCR correct response rate, FTSD finger tapping speed of dominant hand, FTSND finger tapping speed of non-dominant hand
  2. RTmean and SDRT are in millisecond (ms); FTSD and FTSND are in average number of taps per 10 s
  3. *Calculated by repeated measures ANOVA
  4. aThe numbers 1, 2, 3, and 4 represent Systems 1, 2, 3, and 4, respectively. Analyzed by Bonferroni