Table 5.
Detailed System Usability Scale (SUS) scores for each participant (N=12).
| SUS item | Participant number (age group, years) | Mean (SD) | Total | SUS score | ||||||||||||||
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|
P1 (25-34) | P2 (18-24) | P3 (45-59) | P4 (45-59) | P5 (45-59) | P6 (25-34) | P7 (25-34) | P8 (35-44) | P9 (25-34) | P10 (45-59) | P11 (>60) | P12 (45-59) |
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|
|
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| I think that I would like to use this system frequently | 2 | 2 | 3 | 2 | 3 | 3 | 4 | 2 | 3 | 3 | 4 | 4 | 2.91 (0.79) | 35.0 | 87.5 | |||
| I found the system unnecessarily complex | 2 | 3 | 2 | 1 | 2 | 3 | 4 | 4 | 4 | 1 | 4 | 3 | 2.75 (1.13) | 33.0 | 82.5 | |||
| I thought the system was easy to use | 3 | 2 | 4 | 2 | 1 | 4 | 3 | 2 | 3 | 3 | 3 | 3 | 2.75 (0.86) | 33.0 | 82.5 | |||
| I think that I would need the support of a technical person to be able to use this system | 3 | 3 | 4 | 3 | 1 | 4 | 4 | 3 | 3 | 1 | 4 | 3 | 3.00 (1.04) | 36.0 | 90.0 | |||
| I found the various functions in this system were well integrated | 3 | 2 | 4 | 2 | 4 | 3 | 3 | 2 | 4 | 3 | 3 | 4 | 3.08 (0.79) | 37.0 | 92.5 | |||
| I thought there was too much inconsistency in this system | 2 | 4 | 2 | 4 | 2 | 3 | 3 | 3 | 4 | 1 | 3 | 3 | 2.83 (0.75) | 34.0 | 85.0 | |||
| I would imagine that most people would learn to use this system very quickly | 3 | 3 | 4 | 4 | 3 | 4 | 3 | 2 | 2 | 4 | 3 | 4 | 3.25 (0.75) | 39.0 | 97.5 | |||
| I found the system very cumbersome to use | 2 | 3 | 4 | 3 | 2 | 4 | 3 | 3 | 4 | 4 | 4 | 4 | 3.33 (0.77) | 40.0 | 100 | |||
| I felt very confident using the system | 2 | 1 | 3 | 1 | 2 | 4 | 3 | 2 | 3 | 4 | 4 | 3 | 2.66 (1.07) | 32.0 | 80.0 | |||
| I needed to learn a lot of things before I could get going with this system | 2 | 3 | 2 | 4 | 2 | 4 | 3 | 3 | 3 | 4 | 4 | 4 | 3.16 (0.83) | 38.0 | 95.0 | |||
| Total | 24 | 26 | 32 | 26 | 22 | 36 | 33 | 26 | 33 | 28 | 36 | 35 | N/Aa | N/A | N/A | |||
| SUS score | 60 | 65 | 80 | 65 | 55 | 90 | 82.5 | 65 | 82.5 | 70 | 90 | 87.5 | N/A | N/A | N/A | |||
aN/A: not applicable.