The MAP RIT Scale
After each MAP assessment, students receive a RIT score. Think of the score as a student’s height. The score reflects the student’s academic knowledge, skills, and abilities like inches reflect height.
The RIT (Rasch Unit) scale is a stable, equal-interval scale, like feet and inches. Equal-interval means that a change of 10 RIT points indicates the same thing regardless of whether a student is at the top, bottom, or middle of the scale, and a RIT score has the same meaning regardless of grade level or age of the student. Scores over time can be compared to tell how much growth a student has made, similar to measuring height with a ruler.
MAP assessments use the RIT scale to create a grade-independent RIT score, which indicates the level of question difficulty a given student is capable of answering correctly about 50% of the time. RIT scores help educators understand what every child is ready to learn. MAP tests produce scores that make it possible to monitor student growth from year to year.