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Using Lexile® measures, students can be matched with reading materials more precisely than grade or age indicators allow. Within a classroom, there will be a wide range of students’ Lexile measures.

Typical Lexile Reader Measures by Grade

MetaMetrics conducted a research study using national samples to describe Lexile ranges for each grade. Data for these national user norms came from a large sample of students who were administered tests that reported Lexile measures in the years 2010 through 2016.

Typical Lexile Reader Measures by Grade for English Text

Grade         Reader Measures, Mid-Year 25th percentile to 75th percentile (IQR)*
1 BR120L to 295L**
2 170L to 545L
3 415L to 760L
4 635L to 950L
5 770L to 1080L
6 855L to 1165L
7 925L to 1235L
8 985L to 1295L
9 1040L to 1350L
10 1085L to 1400L
11 & 12 1130L to 1440L

* The Lexile range shown is the middle 50 percent of reader measures for each grade. This means that 25 percent of students had Lexile measures below the lower number and 25 percent had Lexile measures above the higher number.
** Beginning Reader (BR) is a code given to readers and texts that are below 0L on the Lexile scale. The lower the number following the BR code, the more advanced the reader or text is. The higher the number, the less complex the text is or less skilled the reader is.

Read our research describing this work: The Text Complexity Continuum in Grades 1-12

Typical Lexile Text Range for Kindergarten

Following procedures similar to those established for grades 1 through 12, the text complexity range for kindergarten was determined to be BR40L to 230L. This is the text range that students are likely to encounter in kindergarten and should be able to read independently or with minimal support. Examples of books that span the kindergarten text complexity range are Big and Little (BR30L) by Rigby Publishing, Cat Traps(110L) by Molly Coxe and Put Me in the Zoo (220L) by Robert Lopshire.

Typical Lexile Text Measure Range for Kindergarten (English)

Grade  Text Range for Kindergarten*
K BR40L to 230L**

* This range of texts represents approximately the middle 50 percent of the distribution of text complexity measures of a large set of books intended for use in kindergarten.
** Beginning Reader (BR) is a code given to readers and texts that are below 0L on the Lexile scale. The lower the number following the BR code, the more advanced the reader or text is. The higher the number, the less complex the text is or less skilled the reader is.

Lexile Text Measures to Guide Reading for College and Career Readiness

MetaMetrics also studied the text demands of typical reading material for students in grades 1 through 12. The “stretch” text measures (defined in 2012 through studies related to the development of the Common Core State Standards for English Language Arts) represent the demand of texts that students should be reading to be ready for college and career by the end of grade 12.

Lexile Text Measures to Guide College and Career Readiness (English)

Grade   College- and Career-Ready Ranges*
1 190L to 530L
2 420L to 650L
3 520L to 820L
4 740L to 940L
5 830L to 1010L
6 925L to 1070L
7 970L to 1120L
8 1010L to 1185L
9 1050L to 1260L
10 1080L to 1335L
11 & 12 1185L to 1385L

*Ranges are based on the text complexity grade bands in the Common Core State Standards for English, Language Arts, Appendix A (Additional Information), NGA and CCSSO, 2012

Read our research describing this work:
The Lexile Framework for Reading Quantifies the Reading Ability Needed for “College and Career Readiness”
Bending the Text Complexity Curve to Close the Gap

Lexile Measure Ranges for Spanish Text in Grades 1-5

A MetaMetrics’ study begun in 2017 examined Spanish texts in grades 1-5 from a sample of states where statewide textbook adoptions were common practice. The study confirmed that, like English text complexity, Spanish text complexity increases across grades 1-5 and varies within each grade.

Lexile Measure Ranges for Spanish Text by Grade

Grade   Text Measure Ranges, 25th percentile to 75th percentile*
1 450L to 540L
2 505L to 655L
3 635L to 740L
4 700L to 810L
5 730L to 870L

* These text ranges represent approximately the middle 50 percent of the distribution of text complexity measures for each grade level.

Read our research describing this work: The Spanish Text Complexity Continuum in Grades 1-5

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