
Lexile® Measurement
Matching students with the right texts for growth and engagement
Lexile® measurement assigns a numeric score to a student’s reading ability, helping educators match them with texts that challenge without overwhelming. By evaluating vocabulary and comprehension, Lexile® levels provide a standardized way to support literacy instruction and foster skill development.




Lexile®: the key to personalized reading instruction
Ensures students are engaging with texts at an appropriate difficulty level.
Improves comprehension and vocabulary acquisition through tailored reading materials.
Boosts confidence by reducing frustration with overly challenging texts.
Provides a clear framework for educators and parents to support literacy growth both at school and home.
A data-driven approach to reliable
Lexile® scores
ReadBasix calculates Lexile® levels using three targeted subtests:

Designed for precision and practicality
Combines rigorous data analysis with user-friendly tools.
Provides one of the most accurate Lexile® measures available.
Seamlessly integrates with other ReadBasix assessments for a holistic view of student progress.
Simplifies text selection and lesson planning for educators.
ReadBasix leverages over 90 data points to generate precise Lexile® Reading Measures.
Subtests are specifically designed to assess reading comprehension of longer texts, ensuring accuracy.
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FAQ
What is Lexile® measurement?
Lexile measurement is a standardized system that assigns a numeric score to a student's reading ability, helping to match them with appropriately challenging texts
Does ReadBasix directly provide Lexile scores?
Yes - ReadBasix computes an official Lexile® score based on student performance across three proprietary subtests (sentence processing, efficiency, and reading comprehension) under its contract with MetaMetrics.
Why is Lexile measurement important?
Lexile levels help students engage with texts suited to their ability, promoting growth and reducing frustration from materials that are too difficult or too easy.
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