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The Lexile® Framework for Reading measures reading ability and text complexity on the same developmental scale. Today Lexile® measures are recognized in the United States and around the world as the standard for matching readers with texts, over 35 million U.S. students from all 50 states — more than half of the country’s K–12 students — receive Lexile measures every year. More than 65 popular reading assessments and programs and half of all state assessments report Lexile measures. And when a student has a Lexile measure, they can be matched with the more than 100 million articles, books and websites that have Lexile text measures, putting them on the path to success in school, college and careers.

Like its English-language counterpart, El Sistema Lexile® para Leer provides its own developmental scale and measures to connect Spanish-speaking readers with resources at the right level of difficulty and in their native language. Spanish Lexile measures help educators, librarians and parents select targeted materials and activities that can improve reading ability and monitor reading growth in school, the library and at home.

The Lexile® Framework for Writing is an innovative tool for differentiating writing instruction and monitoring growth in writing ability. It expresses student writing ability on the same Lexile scale as reading ability, providing an easy-to-understand language for expressing student writing growth and reinforcing the importance of reading in the development of writing skills. A Lexile writer measure is an estimate of a student’s ability to express language in writing based on factors related to semantic complexity (the level of the words used) and syntactic sophistication (how the words are combined into sentences). Like Lexile reader measures, Lexile writer measures were designed to monitor writing progress within and across school years.

How do Lexile measures help education companies?

Lexile measures allow education companies to bring the power of personalized learning to their products and programs by matching readers with text.

  • Lexile measures match readers with text, providing an ecosystem for aiding in reading comprehension and building reading skills.
  • Lexile measures will provide your customers with a scientifically valid tool for measuring student growth day-to-day, year-to-year.
  • Monitor growth and provide the ability to forecast how students will perform on state assessments.
  • Reporting Lexile measures gives education products a competitive edge.

Discover Competitive Advantages

Why integrate Lexile measures into your product or service? More than 200 ed tech companies and publishers power their products with the Lexile Framework. Learn about the benefits that Lexile measures provide your company and customers.

The Lexile Advantage