TABLE 3.
Task Completion, Mental Workload, and Ease of Use During App Usability Testing: Task Completion and Pauses
| Example Tasks | Time on Task, Mean (Range), min | ||
|---|---|---|---|
| Wave 1 (n = 2) | Wave 2 (n = 7) | Wave 3 (n = 5) | |
| Create an account | 7.0 (6.1–7.8) | 3.3 (1.5–4.3) | 2.4 (1.2–3.0) |
| Child profile, complete setup | 3.3 (3.2–3.4) | 2.3 (1.2–3.5) | 0.7 (0.4–1.1) |
| Nutrition plan, add a new food | 6.8 (6.1–7.4) | 3.5 (1.1–7.4) | 3.8 (2.1–5.5) |
| Routines, setup | 1.7 (1.2–2.1) | 2.4 (0.3–4.6) | 1.8 (0.5–4.0) |
| Routines, add a new medicine | 1.6 (1.5–1.6) | 2.0 (0.5–3.0) | 3.1 (1.3–5.5) |
| Inventory, add a new medicine | 3.7 (2.5–4.9) | 3.5 (1.7–6.2) | 4.0 (3.0–5.1) |
| Add a note | 0.8 (0.5–1.1) | 0.7 (0.1–2.5) | 0.4 (0.2–0.5) |
| Pauses >10 s | 10.5 (9–12) | 5.8 (2–17) | 4.5 (0–13) |