Lexile® Framework for Reading
Lexile measures are based on two well-established indicators of how difficult a text is to comprehend: semantic difficulty (vocabulary-based familiarity of words and phrases) and syntactic complexity (sentence length). Text passages are fed into a proprietary analyzer to determine Lexile scores. A Lexile score can then be translated into a grade-level equivalent. Because of the particular rules that the Lexile analyzer uses to determine if a site is appropriate for analysis, the percentage of sites that are given Lexile scores is approximately 50 percent.
The relationship between grade level and Lexile scores, from Digital Knowledge Central is given here:
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To read more about the Lexile® Framework for Reading, please click here.
To read more about the alignment of Lexile scores to other instructional reading programs, such as Fountas and Pinnell, click here.
