The Northwest Evaluation Association (NWEA) is a global not-for-profit educational services organization that develops academic assessments, one of which is MAP Testing:
Measures of Academic Progress® (MAP®) are computerized tests offered in Reading, Language Usage and Mathematics and Science. The tests are used to measure your student’s progress or growth in school. The scale used to measure your child’s progress is called the RIT scale (Rasch unIT). The RIT scale is an equal-interval scale used to chart your child’s academic growth from year to year.
Teachers use the test scores to keep track of progress and growth in basic skills. The tests let the teachers know where a student’s strengths are and if help is needed in any specific areas. Teachers use this information to help them guide instruction in the classroom. Elementary and Middle School students will MAP test in the fall, winter (as needed) and spring.