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Interested in Contributing to the Growing Corpus of Research on Lexile® and Quantile® measures?

Researchers from around the world have conducted studies using Lexile and Quantile measures. There are hundreds of independent research studies on our measures. And we support researchers by providing them with free access to our databases that provide Lexile measures for nearly 300,000 books; the Lexile Analyzer®, a tool used to estimate the text complexity of a piece of text; a database with the reading demands for specific careers; the Lexile Growth Planner™, a tool to forecast student reading performance; and the Landscape of American School English Project, vocabulary lists for research.

Learn more about accessing these resources by contacting us here.

Our Research Continues

From when we were founded 30 years ago to today, research — both internal and external — is in our DNA at MetaMetrics®. Our initial research studies, which resulted in the created of our flagship product, The Lexile® Framework for Reading, were funded by The National Institute of Child Health and Human Development (NICHD) with a series of grants over the course of a decade.

Today our work remains research based and our bench is deep. More than half of our team is comprised of psychometricians, data scientists and researchers who offer more than 600 years of combined experience. Our team holds more than 40 doctorate and graduate degrees from some of the most prestigious universities in the world, including Duke University, Princeton University, Stanford University and The University of North Carolina at Chapel Hill.

While we continue to work with education companies, publishers and state departments of education to incorporate Lexile and Quantile measures into their products and assessments, we have a dynamic research pipeline. On both the math and reading side, we are working on building personalized learning platforms based upon the principles of deliberate practice and sound psychometric theory. In the math domain, we are examining the postsecondary mathematical demands of college and careers. This information will be used to help students and educators monitor if they are “on track” for success in college and careers.

Browse Research

If you’d like to learn more about the research behind the Lexile Framework for Reading and The Quantile® Framework for Mathematics, or explore independent research studies and analysis using our metrics, visit our research and publications database.

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