Quality of Perception

An evaluation framework from the multimedia-accessibility research literature for measuring how well a user can understand and use a media presentation, combining objective comprehension metrics (e.g., fact-recall or multiple-choice quiz accuracy) with subjective judgements (usefulness, understandability, acceptance). Quality of Perception is distinct from Quality of Service (network / technical quality metrics) and Quality of Experience (overall user satisfaction); it specifically targets whether the information in the media was conveyed to the user. In accessibility research, QoP probes have been adapted to evaluate captioning technologies, sign-language animations, and text-simplification tools with Deaf and Hard-of-Hearing participants, often alongside reporting of participant literacy levels to control for literacy bias.