Per Wikipedia, The Iowa Tests of Basic Skills (ITBS), are standardized tests provided as a service to schools by the College of Education of the University of Iowa. The tests are administered to students in kindergarten through eighth grade as part of the Iowa Statewide Testing Programs, who’s developers administered the tests as a tool to improve instruction. Over decades, participation expanded and currently nearly all school districts in Iowa participate annually in the program, as do many other school districts across the United States. In a cooperative relationship, participating schools receive ITBS test materials, scoring and reporting services and consultation in the use of ITBS for instructional purposes, and ITP utilizes participation by schools in research and test development.
ILM students rank in top 20% in the nation based on the 2015 ITBS score.