About MetaMetrics

Linking Assessment with Instruction 

MetaMetrics, an educational measurement and research organization, develops scientific measures of student achievement that link assessment with targeted instruction to improve learning. The organization's renowned psychometric team created The Lexile Framework for Reading; El Sistema Lexile para Leer, the Spanish-language version of The Lexile Framework for Reading; The Lexile Framework for Writing; and The Quantile Framework for Mathematics.

The Lexile Framework for Reading provides a common, developmental scale and measure to match readers with resources and activities that are targeted to their ability level. Lexile measures help educators, librarians and families to select books, articles and other materials that provide the right level of challenge for the reader's skills and goals, and to monitor growth in reading ability. More than 110,000 books and 80 million articles have Lexile measures, and the number of resources that have been measured continues to grow. Recognized as the most widely adopted reading metric, Lexile measures are used at the school level in all 50 states. Each year, more than 28 million Lexile measures are reported from reading assessments and programs, representing over half of U.S. students.

Like its English-language counterpart, El Sistema Lexile 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 to select targeted materials and activities that can improve reading ability and to 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 measures mathematics achievement and the difficulty of mathematical skills and concepts similar to the way the reading frameworks measure reading ability and text demand. By placing the curriculum, teaching materials and students on the same developmental scale, Quantile measures help educators to describe which mathematical skills a student has learned, those that require additional instruction and new skills the student is ready to learn. Quantile measures better enable educators to target instruction, monitor student growth and forecast performance on high-stakes tests. Parents also can use Quantile measures to support students' mathematical development by connecting them with targeted mathematics activities at home.

The Lexile Framework for Writing measures writing ability on the same Lexile scale as reading ability, providing educators with a consistent and straightforward method to monitor student performance in both reading and writing and reinforcing the importance of reading in the development of writing skills. Like Lexile reader measures, Lexile writer measures help educators to target instruction and monitor growth in student writing ability.

In addition to licensing Lexile and Quantile measures to state departments of education, testing and instructional companies, and publishers, MetaMetrics offers professional development, resource measurement and customized consulting services.