lexile
v.β Β«Read 180, which Toscano calls the βCadillac of reading programs,β employs what is called a lexiled reading model, meaning that each student reads a different text based on their own individual reading level.Β» ββTeaching to the test” by Jillian Jones Napa Valley Register (California) Aug. 13, 2007. (source: Double-Tongued Dictionary)