MAP Assessments: Our scale and norms

Our best-in-class scale delivers results educators trust

After every Measures of Academic Progress® (MAP®) interim assessment, each student receives a score that helps illuminate what he or she knows, is ready to learn, and is projected to achieve. And thanks to something no other interim assessment offers—a mature, reliable, and stable scale—you can trust that the scores you see are both accurate and fair. Our scale, the RIT (Rasch Unit) scale, is a stable equal-interval vertical scale. You can compare the performance of your students and school/district relative to:

  • national achievement and growth norms
  • state standards, including the Common Core State Standards (CCSS)


Take the next step

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 every student’s current achievement level based on their zone of proximal development.

RIT Scale Overview

How the RIT scale and robust national norms support efforts to boost every student’s learning and growth

Performance Comparisons

From a single classroom to the entire nation, compare and contrast student and school performance

Providing norms based on a nationally representative sample of MAP test scores from over 10 million students

At NWEA™, we conduct regular norming studies that allow us to estimate growth based on each student’s starting position on the RIT scale and the amount of instructional time offered.  The 2015 NWEA norming study includes students whose districts or states have adopted and implemented the Common Core as well as those who have not. And this year, it also provides MAP status and growth norms for schools as well as students.

Accurate Measurement

How do you accurately measure student growth in transitional times?

MAP K – 12 computer adaptive interim assessments deliver key insights into all your students’ instructional needs, including high- and low-performing students, special needs students, and early learners. You’ll also receive growth and norms data that permit you to evaluate student achievement independent of grade, over time, and in relation to students across the U.S.

For More Information

Next steps: Dig into the science behind MAP