Viewability

A subjective measure of how watchable and consumable a video is for a particular viewer, encompassing factors like ability to focus on content, level of distraction, information comprehension, and overall comfort with the viewing experience. In ADHD accessibility research, viewability is used as a key metric to evaluate whether video customization effectively improves the watching experience. Viewability can be measured using Likert scales before and after customization, providing a user-centered assessment that captures the holistic viewing experience rather than just individual technical features.