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Table 2 Neurobehavioral test scores by typing speed groups

From: Effects of computer familiarity and computer type on the performance of Korean computerized neurobehavioral test

Neurobehavioral tests Typing speed F-value p-value*
Group I Group II Group III
Simple Reaction time (msec)
 Mean reaction time 369.3 (15.5) 379.6 (5.9) 384.2 (5.8) 0.365 0.694
  Computer type I 391.9 (24.8) 413.5 (9.4) 420.7 (9.4) 0.504 0.606
  Computer type II 381.9 (23.6) 391.6 (8.9) 397.2 (8.9) 0.179 0.837
  Computer type III 334.2 (15.7) 333.7 (6.0) 334.8 (5.9) 0.009 0.992
 SD of mean reaction time 57.8 (5.4) 50.7 (2.0) 53.5 (2.0) 1.172 0.312
  Computer type I 52.3 (10.3) 57.1 (3.9) 55.6 (3.9) 0.131 0.877
  Computer type II 58.1 (8.2) 47.3 (3.1) 51.9 (3.1) 1.253 0.291
  Computer type III 63.1 (9.6) 47.8 (3.6) 53.1 (3.6) 1.598 0.209
Choice Reaction Time (msec)
 Mean reaction time 600.2 (24.0) 604.0 (9.2) 598.6 (8.9) 0.091 0.913
  Computer type I 619.8 (45.0) 649.8 (17.3) 647.5 (16.8) 0.205 0.815
  Computer type II 612.5 (34.7) 612.2 (13.3) 612.7 (12.9) 0.001 1.000
  Computer type III 568.2 (30.2) 550.0 (11.6) 535.7 (11.3) 0.556 0.576
 SD of mean reaction time 123.7 (8.9)ab 90.4 (3.4)a 90.2 (3.3)b 6.385 0.002
  Computer type I 113.2 (16.9) 99.3 (6.5) 95.2 (6.3) 0.425 0.655
  Computer type II 127.5 (15.8) 90.0 (6.0) 93.3 (5.9) 2.628 0.079
  Computer type III 130.3 (13.5)ab 81.9 (5.2)a 82.0 (5.0)b 5.871 0.004
 Number of error 0.6 (0.3) 0.4 (0.1) 0.6 (0.1) 0.957 0.386
  Computer type I 0.8 (0.8) 0.5 (0.3) 1.0 (0.3) 0.510 0.602
  Computer type II 0.7 (0.3) 0.2 (0.1) 0.3 (0.1) 1.037 0.359
  Computer type III 0.3 (0.3) 0.3 (0.1) 0.4 (0.1) 0.176 0.839
Addition (msec)
 Mean reaction time 2514.6 (122.1) 2506.2 (46.8) 2344.3 (45.3) 2.894 0.057
  Computer type I 2517.3 (219.9) 2591.8 (84.3) 2464.1 (81.6) 0.589 0.557
  Computer type II 2571.1 (226.6) 2469.3 (86.9) 2286.3 (84.1) 1.194 0.308
  Computer type III 2455.5 (190.6) 2457.5 (73.1) 2282.5 (70.7) 1.382 0.257
 SD of mean reaction time 494.7 (67.2) 637.1 (25.8) 613.0 (24.9) 2.205 0.112
  Computer type I 506.8 (121.3) 692.1 (46.5) 646.9 (45.0) 1.248 0.293
  Computer type II 487.4 (114.6) 602.8 (44.0) 570.5 (42.5) 0.571 0.567
  Computer type III 489.8 (116.5) 616.3 (44.7) 621.8 (43.2) 0.549 0.580
 Number of error 3.0 (0.6) 2.0 (0.2)a 2.7 (0.2)a 4.175 0.016
  Computer type I 2.7 (1.0) 2.1 (0.4) 2.6 (0.4) 0.477 0.622
  Computer type II 3.1 (1.0) 2.0 (0.4) 2.4 (0.4) 0.829 0.440
  Computer type III 3.2 (1.0) 1.8 (0.4)a 3.2 (0.4)a 3.858 0.025
  1. The value are expressed as mean (standard error) adjusted by age and education. SD standard deviation. *calculated by ANCOVA adjusted for age and education, same letters such as a and b in same row indicate differences at the 5 % significance level by post hoc test of Bonferroni F
  2. Computer type I is laptop computer, computer type II is laptop computer connected to a simplified keyboard, and computer type III is desktop computer connected to a simplified keyboard