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Lexile Text Measures

Overview and Introduction

The LexileŽ Framework for Reading is a scientific approach to reading and text measurement. There are two Lexile measures: the Lexile reader measure and the Lexile text measure. Students receive a Lexile reader measure as a score from a reading test - it describes his or her reading ability. Books and other texts receive a Lexile text measure from a software tool called the Lexile Analyzer - it describes the book's reading demand or difficulty.

When used together, the Lexile measures can help match a reader with reading material that is at an appropriate difficulty, or help give an idea of how well a reader will comprehend a text. When a Lexile text measure matches or is in the range of a Lexile reader measure, this is called a targeted reading experience.

Extensive information about the development of the Lexile Framework for Reading can be found in the Researchers section of the Lexile website. In particular, a white paper entitled The Lexile Framework as an Approach for Reading Measurement and Success provides detailed descriptions of each component of the Lexile Framework for Reading.

Lexile Scores for CPM Textbooks

  Course Title: ISBN-13: Copyright
Core Connections series (6th-Algebra 2)
Core Connections, Course 1 9781603280778 ©2013 980
Core Connections, Course 2 9781603280846 ©2013 920
Core Connections, Course 3 9781603280914 ©2013 910
Core Connections Algebra 9781603281010 ©2013 930
Core Connections, Integrated I 9781603283229 ©2014 940
Core Connections Geometry 9781603281089 ©2013 960
Core Connections Algebra 2 9781603281157 ©2013 980
Making Connections 1 and 2
Making Connections:
Foundations for Algebra, Course 1
9781603280358 ©2010 920
Making Connections:
Foundations for Algebra, Course 1, Vol. 1
9781603280334 ©2010 910
Making Connections:
Foundations for Algebra, Course 1, Vol. 2
9781603280341 ©2010 930
Making Connections:
Foundations for Algebra, Course 2
9781603280402 ©2010 910
Making Connections:
Foundations for Algebra, Course 2, Vol. 1
9781603280389 ©2010 910
Making Connections:
Foundations for Algebra, Course 2, Vol. 2
9781603280396 ©2010 910
First edition Connections courses
Algebra Connections 9781931287470 ©2006 900
Algebra Connections, Vol. 1 9781931287456 ©2006 890
Algebra Connections, Vol. 2 9781931287463 ©2006 920
Geometry Connections 9781931287609 ©2007 940
Geometry Connections, Vol. 1 9781931287586 ©2007 940
Geometry Connections, Vol. 2 9781931287593 ©2007 950
Algebra 2 Connections 9781931287982 ©2009 1010
Algebra 2 Connections, Vol. 1 9781931287968 ©2009 990
Algebra 2 Connections, Vol. 2 9781931287975 ©2009 1030
Pre-Calculus with Trigonometry, Vol. 1 9781603280044 ©2009 990
Pre-Calculus with Trigonometry, Vol. 2 9781603280051 ©2009 1040

Typical Reader and Text Measures by Grade

  Grade: Reader Measures, Mid-Year:
25th percentile to 75th percentile (IQR)
Text Demand Study (2009)
25th percentile to 75th percentile (IQR)
1 Up to 300L 230L to 420L
2 140L to 500L 450L to 570L
3 330L to 700L 600L to 730L
4 445L to 810L 640L to 780L
5 565L to 910L 730L to 850L
6 665L to 1000L 860L to 920L
7 735L to 1065L 880L to 960L
8 805L to 1100L 900L to 1010L
9 855L to 1165L 960L to 1110L
10 905L to 1195L 920L to 1120L
11 and 12 940L to 1210L 1070L to 1220L

Data for the second column of text measures came from a research study designed to examine collections of textbooks designated for specific grades (MetaMetrics, 2009).

Notice that there is considerable overlap between the grades. This is typical of student reading levels and texts published for each grade.