20. What is a Lexile? A Lexile is a unit for measuring text difficulty. The word Lexile is a blend of the root word “Lex”, which refers to words, and echoes the word “ percentile”, a comparative unit of measure.
22. How do you use a Lexile Measure? On Grade Level Lexile Range Student Tested Lexile: 729L Grade 7 Grade 6 Grade 5 Grade 4 850-1100L 800-1050L 700-1000L 600-900L Instructional/Challenging Reading Range is 250L Above Lexile Score. Less than 70% Comprehension Independent/Instructional Reading Range is 100L Below to 50L Above Lexile. 70% to 80% Comprehension Independent/Fluent Reading Range is 250L below Lexile Score. 80% to 90% Comprehension