NASA Task Load Index (TLX)

There are no right or wrong answers. If something is not entirely clear, follow your intuition.


User ID Your four digit user identification number


Mental Demand How mentally demanding was the task?

Very Low
|
Very High

Physical Demand How physically demanding was the task?

Very Low
|
Very High

Temporal Demand How hurried or rushed was the pace of the task?

Very Low
|
Very High

Performance How successful were you in accomplishing what you were asked to do?

Perfect
|
Failure

Effort How hard did you have to work to accomplish your level of performance?

Very Low
|
Very High

Frustration How insecure, discouraged, irritated, stressed, and annoyed were you?

Very Low
|
Very High