A review of the Lexile Framework (LF) was conducted by five expert panel members through readings, the preparation of brief individual reports, and participation in a meeting held on April 26, 2001 in Washington, D.C. The LF is a linguistic-theory-based method for measuring the reading difficulty of prose text. The panel's charge was to provide NCES with informed judgment on the theoretical underpinnings and construct validity of the Framework. Specifically, panel members were asked to address the Lexile Framework's basis in linguistic theory. The paper details conclusions and recommendations from the panel's deliberations; attachments include the reports from each panel member and comments from the LF developers.
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