The Lexile® Framework for Reading


The Lexile® Framework for Reading
Oklahoma State Department of Education | (405) 521-3301

Notice: The Oklahoma Department of Education does not endorse or recommend reading material for its schools. Curriculum decisions are made at the district/local level in Oklahoma. Reading material for students should always be previewed by parents or educators.

The Oklahoma School Testing Program (OSTP), grades 3-8, has been linked with The Lexile® Framework for Reading. Students taking the end of grade English Language Arts (ELA) assessment will receive a Lexile measure on the individual student score report.

What is a Lexile measure?


The Lexile scale is like a thermometer that can help you measure a text's complexity and your reader's ability. By knowing your child's Lexile measure and the Lexile measure of a text, you can find a good match for your child when selecting a specific book, magazine article or other reading materials. Remember, a good match will help increase your child's reading growth.

The Lexile measure is shown as a number with an "L" after it — 880L is 880 Lexile. For example, if a student receives an 880L on his or her end-of-grade reading test, he or she is an 880 Lexile reader. Higher Lexile measures represent a higher level of reading ability. A Lexile reader measure can range from below 200L for early readers to above 1600L for advanced readers.

A Lexile text measure, like a Lexile reader measure, is reported on the same Lexile scale. The lower a book’s Lexile measure, the easier it will be to comprehend. For example, a text with a Lexile measure of 850L will most likely be easier for a reader to comprehend than a text at 950L.

A very useful feature of Lexile reader and text measures is that they can be used together to 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.

Learn more about the Lexile® Framework for Reading on the Lexile website.

The Lexile® Framework for Reading

The Oklahoma State Department of Education wants to provide opportunities for all students to become good readers. After all, reading is an essential skill and one that is highly predictive of a student’s future success in school and on the job. In Oklahoma, we encourage reading year-round.

Linking assessment with reading instruction

When used together, Lexile reader measures and Lexile text measures enable educators, parents and students to select books and other targeted reading materials that meet and challenge a reader's unique abilities and interests.

Lexile Tools and Resources

The Lexile® & Quantile® Hub

The Hub platform provides access to all of the Lexile and Quantile tools that support student learning and growth in reading and math. Read tool descriptions below or visit the Hub at

Lexile® Find a Book
Search among over half a million books using the Find a Book browser that:

  • Offers previews of challenging words and their definitions for each book.
  • Identifies the Lexile level and vocabulary by chapter for over 1,600 popular books.
  • Creates and manages personal book lists that can be shared.
  • Searches by a student’s Lexile measure or range, grade level or interests.

Lexile Analyzer®
Paste or type in text of 1,000 words or less to discover:

  • The Lexile range for the text.
  • Early Reading Indicator information for texts 650L and below.
  • Lists of similar books.
  • Challenging words highlighted in the text along with their definitions, parts of speech, example sentences.
  • Toggle to Spanish to paste or type text in Spanish and get a Lexile range.

Lexile® WordLists
Create your own customized lists of consequential words from a collection of 40 million words based on general and academic domain K-12 vocabulary. Lists can be downloaded and printed.

Lexile® Career Database
Identify the Lexile level associated with the reading demands of a particular career in this new tool.

Lexile® Measures Manager
Determine a student's optimal reading measure when two assessments have resulted in significantly differing Lexile measures.

Lexile® Growth Planner
Chart a student’s reading growth across different annual state assessments and forecast future growth. With the Growth Planners, you can:

  • Forecast college and career readiness with Lexile measures.
  • Compare Individual student results to national student performance.
  • Explore career options along with expected reading demands
  • View national, state and regional career information

Lexile®Grade Level Charts
View and print student Lexile measures by grade level. Filter your view by grade(s), time of year, and student population percentiles.

Additional Resources

An Introduction to the Lexile Framework for Reading This 20-minute recording on the basic concepts and uses of The Lexile® Framework for Reading is the perfect resource for educators who are new to Lexile measures.
The Lexile Infographic Everything you need to know about the Lexile® Framework for Reading in one easy to understand graphic.
Digital Prairie Oklahoma students, parents and educators have access to Digital Prairie Link. This database contains an abundance of online newspaper and magazine articles to match students’ Lexile ranges.
Lexile® Map The Lexile Map provides examples of popular books and sample texts on the Lexile scale ranging from 200L for beginning reader books to 1600L for more advanced texts. It's a quick reference guide that helps to show what a Lexile measure represents.
Lexile® Measures at Home This webpage contains topics and links that detail ways you can use a child's Lexile measure—and the Lexile measures of books and other reading materials—to foster literacy and learning at home.
Summer Reading Improve reading during the summer months. Use Find a Book to build custom lists for readers at all ability levels, and then locate your selections at your local public library.

Access communications resources including the Lexile parent guide, educator guide, librarian guide, Lexile map, Lexile infographic and video at and

More information about the Lexile Framework can be found at

Additional Links

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Last updated on February 9, 2021