Table 1 Overview of usability test data over 12 tasks. SD = standard deviation
From: Design and usability testing of an in-house developed performance feedback tool for medical students
Averaged task completion rate and time on task (N = 22) | |||
|---|---|---|---|
Task | Task Completion | Time on Task (sec) +/− SD | Avg. Number of errors +/− SD |
1 | 91% | 60 +/− 30 | 0.45 +/− 0.96 |
2 | 100% | 40 +/− 24 | 0.10 +/− 0.31 |
3 | 82% | 61 +/− 33 | 0.64 +/− 0.90 |
4 | 100% | 15 +/− 13 | 0 +/− 0 |
5 | 73% | 58 +/− 29 | 1.32 +/− 1.20 |
6 | 73% | 37 +/− 18 | 0.95 +/− 0.97 |
7 | 91% | 24 +/− 15 | 0.36 +/− 0.66 |
8 | 91% | 22 +/− 21 | 0.32 +/− 0.57 |
9 | 77% | 67 +/− 35 | 1.41 +/− 1.82 |
10 | 5% | 37 +/− 25 | 0.9 +/− 0.44 |
11 | 55% | 39 +/− 27 | 0.91 +/− 0.53 |
12 | 100% | 23 +/− 17 | 0.22 +/− 0.52 |