NASA Task Load Index (NASA-TLX)

The NASA Task Load Index (NASA-TLX) is a tool used to measure how demanding or stressful a task feels to a person. It assesses six factors: mental effort, physical effort, time pressure, perceived performance, effort required, and frustration. By evaluating these aspects, it helps identify which parts of a task are most challenging, guiding improvements in design, procedures, or training. The goal is to ensure tasks are manageable and efficient, reducing stress and errors while enhancing safety and effectiveness.