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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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Trouble-Indicating Behavior(also: TIB, Trouble Source-Repair)
Verbal or nonverbal behaviors that signal confusion, misunderstanding, or difficulty in communication. In research on dementia and human-robot interaction, TIBs are categorized into types including: requests for repetition, requests for clarification, metalinguistic comments ("I…

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