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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