Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- AI Over-Reliance(also: Automation Bias (AI), Over-Reliance on AI)
- The tendency of users to accept AI system outputs — recommendations, classifications, or content — without sufficient critical evaluation, even when those outputs are wrong or biased. Over-reliance is a well-documented AI safety concern and is especially consequential in…
- Non-Use(also: Technology Non-Use, Technology Refusal)
- A research tradition in HCI that takes seriously the choice not to use a technology — treating refusal, abandonment, and selective engagement as meaningful, reasoned behaviour rather than as failure. Non-use scholarship (Wyatt, Baumer, Satchell & Dourish, Waycott and colleagues)…
- Prediction Utilization(also: PU)
- The percentage of opportunities where a user accepts a word prediction rather than continuing to type the word manually. Prediction utilization reflects user trust in a prediction system—higher quality predictions lead to higher utilization rates. Research shows that users…
- Role-play(also: Role-playing, Roleplay)
- A social behaviour in which a person treats a non-human or virtual agent as if it had a character, feelings, or agency — narrating its actions, giving it a name, addressing it in character, and rationalising its mistakes with in-character explanations. In accessibility research…
- Social Proof
- A psychological and behavioural phenomenon in which people rely on the choices, ratings, and reviews of others as evidence when making decisions under uncertainty. In digital accessibility contexts, social proof becomes especially load-bearing for users who cannot independently…
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