Table 1 SUS scores for each iterative cycle in the tests
From: OTP-PRL: an app for occupational risk prevention in policing activities
SUS questions | Scores cycle 1 | Scores cycle 2 | Scores cycle 3 | F ratio | p |
|---|---|---|---|---|---|
Q1. Would use the app frequently | 3.5/0.5 | 3.8/0.6 | 3.8/0.4 | 2.5 | NS |
Q2. App unnecessarily complex | 1.8/0.5 | 1.8/0.5 | 1.5/0.5 | 1.8 | NS |
Q3. App easy to use | 3.6/0.5 | 4.2/0.7 | 4.3/0.5 | 7.9 | .001 |
Q4. Need support to use the app | 2.1/0.6 | 1.8/0.8 | 1.8/0.6 | 0.9 | NS |
Q5. Functions in app well integrated | 3.4/0.6 | 3.8/0.6 | 4.3/0.5 | 12.6 | <.001 |
Q6. Too much inconsistency in the app | 2.4/0.6 | 2.2/0.7 | 1.7/0.5 | 7.7 | .001 |
Q7. Most people would learn to use this app quickly | 3.9/0.7 | 4.2/0.8 | 4.4/0.5 | 2.6 | NS |
Q8. Found the app very cumbersome to use | 2.3/0.6 | 1.9/1.0 | 1.2/0.4 | 10.1 | <.001 |
Q9. Felt very confident using the app | 3.4/0.6 | 3.9/0.9 | 4.2/0.4 | 7.8 | .001 |
Q10. Need to learn a lot before going with the app | 2.7/0.5 | 2.3/1.0 | 2.1/0.7 | 3.4 | <.05 |
Global Score | 65.9/5.0 | 74.3/10.0 | 82.1/3.3 | 24.7 | <.001 |