Table 5.
Comparison of the results of NASA-TLX dimensions during the two drives.
| No Distractions | Distractions | Differences | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable | µ | SD | C.I. (95%) | µ | SD | C.I. (95%) | µ | SD | C.I. (95%) | T-Student | p-Value |
| Mental Demand | 238.20 | 97.12 | (206.72; 269.69) | 326.03 | 115.71 | (288.52; 363.54) | −87.82 | 24.19 | (−135.99; −39.64) | −3.63 | 0.001 |
| Physical Demand | 35.64 | 45.91 | (20.76; 50.52) | 102.18 | 106.50 | (67.66; 136.7) | −66.54 | 18.57 | (−103.52; −29.55) | −3.58 | 0.001 |
| Effort | 144.49 | 83.07 | (117.56; 171.41) | 222.31 | 109.21 | (186.90; 257.71) | −77.82 | 21.97 | (−121.58; −34.06) | −3.54 | 0.001 |
| Performance | 152.82 | 96.61 | (121.51; 184.14) | 326.03 | 115.71 | (288.52; 363.54) | −87.82 | 24.19 | (−135.99; −39.64) | −3.63 | 0.001 |
| Overall Workload Score | 0.56 | 97.12 | (206.72; 269.69) | 102.18 | 106.50 | (67.66; 136.7) | −66.54 | 18.57 | (−103.52; −29.55) | −3.58 | 0.001 |
µ: Mean, SD: Standard Deviation, and C.I: Confidence Interval.