“…9 It has been validated and successfully utilized in multiple fields including transportation, energy, construction, education, and healthcare. [10][11][12][13][14][15][16][17] The TLX is comprised of six subscales: demand (how much mental and perceptual activity was required), physical demand (how much physical activity was required), temporal demand (how hurried or rushed was the pace of the task), performance (how successful was the subject in accomplishing what they were asked to do), effort (how hard did the subject have to work to accomplish the level of performance), and frustration level (how insecure, discouraged, irritated, stressed, and annoyed was the subject). 8 All subscales range from 0 (very low) to 100 (very high), with the exception of Performance, where 0 is perfect and 100 is failure.…”