The Lexile Framework for Reading

The Lexile® Framework for Reading evaluates reading ability and text complexity on the same developmental scale. When an assessment is linked with the Lexile Framework, students’ test scores immediately become actionable.

    Developed by MetaMetrics in Durham, North Carolina, The Lexile Framework is based on more than 20 years of research funded by the National Institute of Child Health and Human Development. The distinct approach to measuring readers and texts has resulted in Lexile adoptions by departments of education in nearly half the states and school districts in all 50 states.
    More information about the Lexile Framework can be found at

    What is a Lexile Measure?

    There are two Lexile® measures: the Lexile reader measure and the Lexile text measure. A Lexile reader measure represents a person’s reading ability on the Lexile scale. A Lexile text measure represents a text’s difficulty level on the Lexile scale. When used together, Lexile measures help a reader choose a book or other reading material that is at an appropriate difficulty level and can predict how well a reader will likely comprehend a text at a specific Lexile level. For example, if a reader has a Lexile measure of 1000L, he will be forecasted to comprehend approximately 75 percent of a book with the same Lexile measure (1000L). The 75-percent comprehension rate is called “targeted” reading.
    Today, Lexile measures are recognized as the most widely used reading metrics. Lexile measures connect learners of all ages with resources at the right level of challenge and monitor their progress toward state and national learning standards. Lexile measures range from below 200L for emergent readers and text to above 1600L for advanced readers and text.

      Lexile Measures in Nevada

      Students will receive a Lexile measure from the Nevada Department of Education English Language Arts Smarter Balanced Assessment. Click the link below to view a score report sample containing Lexile measure information.

      Students, parents and educators can access Nevada’s CLAN State Library Online Database to access an abundance of online newspaper and magazine articles that match their Lexile range. 

      Using Lexile Measures to Assess College and Career Readiness

      The goal of the Nevada Academic Content Standards is to ensure that students are ready for college and career after high school. An important factor for readiness is a student’s ability to read and understand texts of steadily increasing complexity as they progress through school. The Lexile Framework provides valuable insights into student readiness by measuring both the complexity of college and career texts and a student’s ability to comprehend these texts.

        Lexile Growth Planner

        Built on the Lexile Framework for Reading, MetaMetrics’ newest utility—the Lexile Growth Planner—helps stakeholders visualize both a student’s past growth and his or her estimated future growth towards goals for college and career. Powered by research on the specific reading demands of individual occupations and post-secondary study, this utility allows students, parents, and educators to monitor their progress toward goals but also adjust instruction to close any learning gaps that may exist.

        Lexile Tools “Find a Book, Nevada”

        Once students have their Lexile measure, they can search for titles matching their Lexile level using the free “Find a Book, Nevada” ([2] /) search tool. From there, students can build custom reading lists and check the availability of books at their local library. Access the resources below to learn more about “Find a Book, Nevada.”

          Lexile Book Titles Database

          The database contains Lexile measures for tens of thousands of books from hundreds of publishers and is offered free of charge to educators.

          Lexile Map

          The Lexile map provides examples of popular books and sample text at various points on the Lexile scale, from 200L for early reading books to 1600L for more advanced texts. It's a quick reference guide for what a Lexile measure means. Access the Nevada Lexile maps below.

          • Nevada 8.5x11 Lexile Map (coming soon)
          • Nevada 11x17 Lexile Map (coming soon)

          Lexile® Analyzer

          The Lexile Analyzer ( measures the complexity of the text by breaking down the entire piece and studying its characteristics which represent the syntactic and semantic challenges that the text presents to a reader. The outcome is the text complexity, expressed as a Lexile measure, along with information on the word count, mean sentence length and mean log frequency.