About MetaMetrics' Frameworks

MetaMetrics offers a scientific approach to measuring both student ability and the complexity of learning materials on the same scale. Measuring both performance and materials on the same scale makes it possible to connect learners to resources and instruction at the appropriate challenge level.

Over time MetaMetrics has developed the following frameworks:

This video explains why MetaMetrics uses these Frameworks to measure different literacy constructs.

You can leverage these frameworks using our APIs and partner products and tools. For example, the Lexile Text Analyzers can be used to generate Lexile measures for texts, the Titles API can be used to identify and provide texts at different Lexile measures, and the Career Database can be used to identify the entry-level reading and math demands for hundreds of careers.

Please refer to