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Comparison of means and standard deviations for the system usability score questionnaire.
| Headphone |
No headphone |
P value | ||
|---|---|---|---|---|
| Mean | SD | Mean | SD | |
| 4.53 | 0.83 | 3.00 | 1.18 | .000 |
| 1.79 | 0.89 | 2.36 | 1.45 | .220 |
| 4.27 | 0.96 | 3.36 | 1.22 | .033 |
| 1.8 | 1.01 | 2.00 | 1.52 | .678 |
| 3.87 | 1.13 | 2.86 | 1.17 | .025 |
| 2.2 | 1.08 | 3.43 | 1.40 | .013 |
| 4.47 | 1.06 | 4.14 | 1.03 | .411 |
| 1.73 | 0.88 | 2.64 | 1.34 | .038 |
| 4.13 | 0.92 | 3.43 | 1.22 | .089 |
| 1.6 | 0.63 | 1.93 | 1.44 | .428 |
