Usability Study

A research method that evaluates how easily and effectively users can interact with a product, system, or prototype by observing real users performing tasks. Usability studies measure factors such as task completion rate, error frequency, time on task, and subjective satisfaction, often using standardized questionnaires like the System Usability Scale. In accessibility research, usability studies with disabled participants are essential for validating that accessible designs are not only technically compliant but genuinely usable and useful in practice.