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Summary of the NASA-TLX Survey
| Survey Items | Score |
|---|---|
| NASA-TLX index (unweighted) | |
| Mean (SD) | 8.3 (7.8) |
| Median | 3.3 |
| Range | 0.0–26.7 |
| Mental demand | |
| Mean (SD) | 2.6 (3.9) |
| Median | 0.0 |
| Range | 0.0–15.0 |
| Physical demand | |
| Mean (SD) | 1.1 (2.4) |
| Median | 0.0 |
| Range | 0.0–10.0 |
| Temporal demand | |
| Mean (SD) | 64.9 (30.6) |
| Median | 85.0 |
| Range | 10.0–100.0 |
| Performance | |
| Mean (SD) | 5.5 (8.5) |
| Median | 0.0 |
| Range | 0.0–40.0 |
| Effort | |
| Mean (SD) | 3.0 (5.0) |
| Median | 0.0 |
| Range | 0.0–20.0 |
| Frustration | |
| Mean (SD) | 2.4 (3.4) |
| Median | 0.0 |
| Range | 0.0–10.0 |
