NASA Task Load Index (NASA-TLX)

The NASA-TLX is a subjective, multidimensional workload assessment tool. It rates perceived workload on six different scales: Mental Demand, Physical Demand, Temporal Demand, Performance, Effort, and Frustration.


Download it for free!

Human Robot Interaction Workload Measurement (HRI-WM)

The HRI-WM assesses workload attributed to human-robot interaction. This tool measures overall workload and the amount of perceived workload for robot operators using five subscales: Team Configuration, Task, Context, Team Process, and System.The NASA-TLX is a subjective, multidimensional workload assessment tool. It rates perceived workload on six different scales: Mental Demand, Physical Demand, Temporal Demand, Performance, Effort, and Frustration.


Download it for free!

Human Factors Consulting

Contact playgraph for human factors usability and design consultation. We offer expertise in task analysis, heuristic and normative design, as well as rapid prototyping and iterative design.

Scientific Applications

playgraph consults with scientific researchers to develop desktop, mobile and web-based measurement software. If you need a custom measurement tool, please contact us today!

playgraph also offers out-of-the box scientific applications for sale. Check out our apps page for more information.

Experimental Design

playgraph can work with you to design, develop, and host your scientific experiment. Examples of our work include researching: video game engagement, eLearning, warning pop-ups, avatars, and web usability. We have experience with integrating experiments with university participant pools as well as with crowdsourcing solutions such as Amazon's Mechanical Turk.

Check out our resources page for code samples and tutorials on developing your own experiments.