LexileGradeLevelConversionChart

LexileGradeLevelConversionChart - equations:...

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Lexile* Grade Level Conversion Chart Lexile Rating Educational Grade-Level Lexile Rating Educational Grade-Level 25 1.1 675 3.9 50 1.1 700 4.1 75 1.2 725 4.3 100 1.2 750 4.5 125 1.3 775 4.7 150 1.3 800 5.0 175 1.4 825 5.2 200 1.5 850 5.5 225 1.6 875 5.8 250 1.6 900 6.0 275 1.7 925 6.4 300 1.8 950 6.7 325 1.9 975 7.0 350 2.0 1000 7.4 375 2.1 1025 7.8 400 2.2 1050 8.2 425 2.3 1075 8.6 450 2.5 1100 9.0 475 2.6 1125 9.5 500 2.7 1150 10.0 525 2.9 1175 10.5 550 3.0 1200 11.0 575 3.2 1225 11.6 600 3.3 1250 12.2 625 3.5 1275 12.8 650 3.7 1300 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
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Unformatted text preview: 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 Learnings 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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This note was uploaded on 10/11/2011 for the course CIED 4233 taught by Professor Staff during the Fall '11 term at Oklahoma State.

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