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Contact Elizabeth Lattanzio, Communications Director

Corporate Overview

MetaMetrics® is a privately held educational research organization that develops scientific measures of achievement. We are best known for developing The Lexile® Framework for Reading and The Quantile® Framework for Mathematics, unified approaches for measurement of reading and math. We create and enhance opportunities for individualized learning through our distinctive partnerships worldwide.

Our Frameworks

The Lexile Framework for Reading evaluates reading ability and text complexity on the same developmental scale. Unlike other measurement systems, the Lexile Framework for Reading determines reading ability based on actual assessments, rather than generalized age or grade levels. Recognized as the standard for matching readers with texts, tens of millions of students worldwide receive a Lexile® measure that helps them find targeted readings from the more than 100 million articles, books and websites that have been measured. Lexile® measures connect learners of all ages with resources at the right level of challenge and monitor their progress toward state and national proficiency standards. More information about the Lexile Framework for Reading can be found at

Like its English-language counterpart, El Sistema Lexile® para Leer provides its own developmental scale and measure to connect Spanish readers with resources at the right level of difficulty and in their native language. Spanish Lexile® measures help educators, librarians and families select targeted materials and activities that can improve reading ability and monitor reading growth in school, the library and at home. Spanish Lexile measures are available from a growing number of reading assessments and programs, and the number of resources with Spanish Lexile measures continues to increase.

The Quantile Framework for Mathematics is a unique measurement system that uses a common scale and metric to assess a student’s mathematical achievement level and the difficulty of specific skills and concepts. The Quantile Framework describes a student’s ability to solve mathematical problems and the demand of the skills and concepts typically taught in kindergarten mathematics through Algebra II, Geometry, Trigonometry and Pre-calculus. Quantile® measures take the guesswork out of instruction by describing which mathematical skills and concepts the student has learned and is ready to learn. They improve mathematics teaching and learning by targeting instruction and monitoring student growth toward proficiency standards and the mathematical demands of college and careers. More information about the Quantile Framework can be found at


Press Releases

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