Table 2.
Usability ratings of participants.
| Overall (n = 27) | Physicians (n = 8) | Healthy subj. (n = 10) | Patients (n = 9) | ||
|---|---|---|---|---|---|
| SUS (0–100) | 89.6 (SD 9.3) | 84.2 (SD 10.7) | 88.8 (SD 8.9) | 94.2 (SD 7.2) | H = 4.47, P = .11 |
| VisAAI (1–7) | |||||
| Simplicity | 6.2 (SD 0.7) | 6.2 (SD 0.8) | 6.2 (SD 0.7) | 6.1 (SD 0.6) | H = 0.09, P = .96 |
| Diversity | 5.3 (SD 1.1) | 5.0 (SD 0.8) | 4.9 (SD 1.0) | 5.8 (SD 1.2) | H = 2.94, P = .23 |
| Colorfullness | 5.8 (SD 1.0) | 5.5 (SD 0.9) | 5.7 (SD 1.0) | 6.2 (SD 1.0) | H = 3.40, P = .18 |
| Raftsmanship | 6.3 (SD 0.6) | 6.1 (SD 0.5) | 6.2 (SD 0.8) | 6.5 (SD 0.5) | H = 2.09, P = .35 |
| Total | 5.9 (SD 0.7) | 5.7 (SD 0.5) | 5.7 (SD 0.8) | 6.2 (SD 0.6) | H = 2.43, P = .30 |
| MAUQ (1–7) | 5.7 (SD 0.9) | 5.7 (SD 0.9) | 5.5 (SD 0.7) | 5.8 (SD 1.1) | H = 0.96, P = .62 |
| FACEsemper specific questionnaire | |||||
| Subgroups (1–7) | 6.1 (SD 0.7) | 6.0 (SD 1.0) | 6.1 (SD 0.6) | 6.3 (SD 0.4) | H = 0.69, P = .71 |
| Overall rating (5–1) | 1.7 (SD 0.9) | 1.9 (SD 1.3) | 1.6 (SD 0.5) | 1.6 (SD 0.9) | H = 0.85, P = .65 |
Possible scores of each questionnaire are listed within backets (worst possible–best possible score). visAAI: visual aesthetics of app inventory; MAUQ: mHealth app usability questionnaire for standalone apps; SUS: system usability scale.