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Usability (SUSa scores) of speech recognition compared to keyboard and mouse.
| SUS category | Keyboard and mouse, median (IQR) | Speech recognition, median (IQR) | Z valueb | P value | Effect size (r) |
| Overall | 85 (72-90) | 75 (62-85) | –3.30 | .001 | 0.47 |
| Usability | 100 (97-100) | 100 (75-100) | –2.98 | .003 | 0.42 |
| Learnability | 81 (68-88) | 72 (59-84) | –3.54 | <.001 | 0.50 |
aSUS: System Usability Scale.
bWilcoxon signed-rank test.
