The results of this score were applied to the No Child Left Behind Act, to identify failing schools.
[1] According to the Illinois State Board of Education (through ISBE.net), this examination tested students in reading and math every year from grades 3–8.
The writing portion of the test was suspended in 2011 due to lack of funding.
The Illinois State Achievement Test reported out Lexile measures for students in grades 3–8.
[2] A Lexile measure can be used to match readers with targeted text and monitor growth in reading ability.