Table 9.
Results of the usability questionnaire after 1 week and 4 weeks of use of the OITcontrol app: opinions about text and screens.
| Questions | Rating | Results at 1 week of use | Results at 4 weeks of use |
| The texts on the screen are...difficult or easy to read? | 1=difficult to 9=easy, median (Q1-Q3a) | 8 (7-9) | 8 (7-9) |
| Is the information highlighted helpful? | 1=absolutely not to 9=of course yes, median (Q1-Q3) | 8 (7-9) | 8 (7-9) |
| Is the transition from one screen/information to another confusing or clear? | 1=confuse to 9=clear, median (Q1-Q3) | 8 (7-8) | 7 (6-8) |
| Does the use of terms...encourage or discourage its use? | 1=discourage to 9=encourage, mean (SD) | 5.9 (2.3) | 5.8 (2.5) |
| Does the use of terms encourage or discourage learning? | 1=discourage to 9=encourage, mean (SD) | 6.2 (2.5) | 6.3 (2.1) |
| Error messages...are they confusing or clear? | 1=confuse to 9=clear, mean (SD) | 6.6 (1.7) | 5.5 (2.5) |
| The messages that appear on the screen...Are they difficult or simple? | 1=difficult to 9=simple, mean (SD) | 7.9 (1.1) | 8.2 (0.9) |
aQ1-Q3: first quartile-third quartile.