Reading comprehension is multidimensional and complex. The persistent challenges children, adolescents, and even adults face with reading comprehension call for concerted efforts to develop assessments that help identify sources of difficulties and to design instructional approaches to prevent or ameliorate these difficulties. Doing so requires…

Describes the Lexile Framework(R), which enables teachers to develop personalized instruction based on Lexile measures of reading ability and Lexiled reading lists. The Lexile Framework is based on the entire book, with individual reading ability measured by tests that measure on the same scale on which the books are measured. As an open standard,…