Table 1 Wording of the NASA TLX questionnaire
TLX-dimension | Wording (scale) |
|---|---|
Mental Demand | How much mental and perceptual activity was required? Was the task easy or demanding, simple or complex? Was high precision required or was the task fault-tolerant? (1 = low, 100 = high) |
Physical Demand | How much physical activity was required? Was the task easy or demanding, slack or strenuous? (1 = low, 100 = high) |
Temporal Demand | How much time pressure did you feel due to the pace at which the tasks or task elements occurred? Was the pace slow or rapid? (1 = low, 100 = high) |
Overall Performance | How successful were you in reaching your goals or the goals set by your team leader? How satisfied were you with your performance? (1 = good, 100 = bad) |
Effort | How hard did you have to work to accomplish your level of performance? (1 = low, 100 = high) |
Frustration | How irritated, stressed, and annoyed versus content, relaxed, and complacent did you feel during the task? (1 = low, 100 = high) |