National Aeronautics and Space Administration Task Load Index (NASA-TLX)

From EuroVR Knowledge Base

Description

The National Aeronautics and Space Administration Task Load Index (NASA-TLX, Hart and Staveland, 1988) is a subjective workload questionnaire which is often used to examine user workload for a specific task when working with human-machine systems. It consists of six subscales: mental demand, physical demand, temporal demand, performance, effort, and frustration level. This tool can be administered as a paper and pen questionnaire or as an automated tool.

Primary Reference or Source

• Hart, S.G., and Staveland, L.E. (1988). Development of NASA-TLX (Task Load Index): Results of empirical and theoretical research. In P.A. Hancock and N. Meshkati (Eds), Human Mental Workload. Elsevier, pp.139-184.