Lexile* Grade Level Conversion Chart - Language arts

Lexile Rating

25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500 525 550 575 600 625 650

Lexile* Grade Level Conversion Chart

Educational Grade-Level

1.1 1.1 1.2 1.2 1.3 1.3 1.4 1.5 1.6 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.5 2.6 2.7 2.9 3.0 3.2 3.3 3.5 3.7

Lexile Rating

675 700 725 750 775 800 825 850 875 900 925 950 975 1000 1025 1050 1075 1100 1125 1150 1175 1200 1225 1250 1275 1300

Educational Grade-Level

3.9 4.1 4.3 4.5 4.7 5.0 5.2 5.5 5.8 6.0 6.4 6.7 7.0 7.4 7.8 8.2 8.6 9.0 9.5 10.0 10.5 11.0 11.6 12.2 12.8 13.5

This conversion chart is based on educational levels from the published "Lexile Framework" chart. A smoothed curve was fit through the grade-level points indicated here, and regression analysis provided the equations:

Lexile=500Ln(Grade Level) or, the counterpart GradeLevel=e0.002(Lexile) The resulting regression equation was then used to calculate the educational grade-levels in the above table. A separate study of over 700 titles confirmed that their Accelerated Reader? (Advantage Learning's reading management software) reading levels and Lexile ratings are correlated, and that regression analysis on published Accelerated Reader and Lexile reading levels produces a very similar conversion equation.

* "Lexile" and "Lexile Framework" are trademarks of Metametrics, Inc. ?Advantage Learning Systems, Inc.

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