- Based on over 20 years of research, beginning with a grant from the National Institute of Child Health and Human Development in 1984
- Lexile® measures are based on two well-established predictors of how difficult a text is to comprehend: semantic difficulty (word frequency correlated to a 600 million word Lexile corpus) and syntactic complexity (sentence length)
- The Lexile scale measures from 200L for beginning readers to 1700L for advanced text
- Tens of thousands of books and tens of millions of newspapers and magazines have Lexile measures, and 450 publishers measure the Lexile level of their titles
- All major standardized reading tests can report student's scores as a Lexile measure
- Lexiles are independent. In addition to Achieve3000, a wide variety of test, book and article publishers have adopted Lexile measures
- Lexiles use the same method and scale to measure readers and text, ensuring greater accuracy when matching readers to materials
- Lexiles apply to everyday reading. The measure applies to books and articles that students encounter daily at school, at home and in the library, bridging the gap between instruction and practical application
For more information on the Lexile Framework, please visit www.lexile.com.
| 
