Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Lexical Chain(also: Lexical Chaining, Lexical Cohesion)
- A sequence of semantically related words running through a text — for example, "doctor", "hospital", "nurse", "patient" — connected by relations like synonymy, hypernymy, or hyponymy. Lexical chains capture the topical coherence of a document and are used in readability…
- Lexile Framework(also: Lexile, Lexile Measure)
- A commercial readability framework developed by MetaMetrics that places both texts and readers on a common scale — the Lexile measure — to support matching readers with materials at an appropriate level of challenge. A text's Lexile measure is computed from sentence length and…
- Lexile Score(also: Lexile Measure, Lexile Level)
- A standardised measure of text complexity and reading ability, expressed on the Lexile scale (roughly 0L to 1600L+). A Lexile text measure reflects sentence length and word frequency; a Lexile reader measure reflects the reader's ability. For accessibility, Lexile scores provide…
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