NWEA MAP assessment scores help parents and teachers understand a student’s current achievement level and academic growth in subjects such as reading, mathematics, language usage, and science. MAP Growth is a computer-adaptive assessment, which means the difficulty of questions changes according to the student’s answers. The goal is to measure what a student knows now and what they may be ready to learn next.



For the 2026–2027 school year, schools are using the updated 2025 MAP Growth norms. These norms provide the national comparison data used to interpret MAP scores by grade level, testing season, and subject. Understanding RIT scores, percentiles, and growth can help families better understand student achievement.



What Does an NWEA MAP Assessment Score Mean?



MAP Growth results are reported using the RIT scale. RIT stands for Rasch Unit. It is an equal-interval scale, similar to the marks on a ruler, so a ten-point increase represents the same amount of measured growth at different points on the scale.



A RIT score should not be interpreted by itself. Parents and teachers should compare it with:



The student’s grade

The subject tested

The Fall, Winter, or Spring testing season

The national grade-level mean

The student’s achievement percentile

Growth between testing periods



An achievement percentile shows how a student performed compared with same-grade students nationally. For example, a percentile rank of 72 means the student scored as well as or better than approximately 72 percent of comparable students.



Understanding MAP Math and Reading Achievement



MAP math scores provide information about a student’s mathematics achievement and growth. The computer-adaptive format adjusts question difficulty according to the student’s responses.



MAP reading scores provide similar information about reading achievement and progress.



Parents should interpret math and reading results separately because the expected performance and national comparison data can vary by subject and grade.



Comparing results across multiple testing periods can also help families understand how achievement changes over time.



What Is a MAP RIT Score?



The RIT score is the main numerical result provided by MAP Growth.



Because the RIT scale is an equal-interval scale, changes in a student’s score can be useful for tracking academic growth. A higher RIT score generally indicates higher measured achievement on the MAP Growth scale.



However, a RIT score is not a percentage or a number of questions answered correctly. It should be interpreted using the appropriate grade, subject, testing season, and current norms.



What Does an Achievement Percentile Mean?



An achievement percentile shows how a student’s performance compares with students in the same grade nationally.



For example, a percentile rank of 75 means the student performed as well as or better than approximately 75 percent of comparable students.



A percentile should not be confused with a percentage score. A student at the 75th percentile did not necessarily answer 75 percent of questions correctly.



Instead, the percentile provides context about relative performance.



What Is a Growth Percentile?



A growth percentile measures how a student’s progress compares with students who had similar starting scores.



This provides a different type of information from the achievement percentile.



Achievement shows how a student is performing at a particular time, while growth shows how the student has progressed between testing periods.



A student may have a lower achievement percentile but demonstrate strong growth. Parents should therefore consider both measures when reviewing MAP results.



What Changed With the 2025 MAP Norms?



The RIT scale itself has not changed, but the national reference points have. NWEA reports that the 2025 norms generally reflect lower national achievement than the previous 2020 norms, with larger differences among lower-performing students.



As a result, the same RIT score may now correspond to a somewhat different percentile than it did under the older norms.



This is why families should use current NWEA MAP score charts for 2026 and 2027 rather than older charts found online.



Why Grade Level Matters



MAP assessment scores should always be interpreted according to grade level.



A RIT score that may be typical for one grade could have a different meaning for another grade. Parents should therefore use grade-specific MAP score charts when reviewing achievement and percentile information.



Grade level provides important context for understanding whether a student's performance is relatively low, typical, or high compared with the appropriate national group.



Why Testing Season Matters



MAP Growth assessments may be administered during Fall, Winter, and Spring.



Fall results can provide a starting point for the academic year. Winter results can show progress during the year, while Spring results can provide information about achievement later in the school year.



Because students are expected to grow throughout the year, parents should compare each result with the appropriate seasonal reference information.



How Parents Can Understand Student Achievement



Parents can review several parts of a MAP report to understand student achievement.



Start with the RIT score, then check the achievement percentile. Next, compare the current result with previous MAP assessments to see whether the student has made progress.



Parents can also consider the growth percentile and compare MAP results with classroom performance and teacher feedback.



Looking at all of these factors together provides a more complete picture than focusing on one number.



Find MAP Scores by Grade Level



You can view updated NWEA MAP scores ReadyScores.com by grade level, MAP score charts, national averages, percentile ranges, and typical Fall, Winter, and Spring scores at ReadyScores.com.



The charts make it easier to compare a child’s score with students in the same grade and testing season. Separate information is available for MAP reading scores, MAP math scores, language usage, and science.



Using current charts can help parents interpret student achievement according to the updated 2025 norms.



One MAP Result Does Not Tell the Full Story



Parents should remember that one MAP assessment score does not describe a student’s complete academic ability. The MAP Growth Family Report combines achievement, growth, and projected proficiency so families can see both current performance and progress over time.



Classroom grades, teacher observations, assignments, and other assessments can also provide valuable information.



The best way to understand student achievement is to consider the RIT score, percentile, growth, grade level, subject, and testing season together.



About ReadyScores.com



ReadyScores.com is a resource for NWEA MAP scores, MAP scores by grade level, i-Ready scores, STAR scores, national percentile charts, and school assessment interpretation.



The website also provides free calculators in English and German. These include the NWEA MAP Score Calculator, i-Ready Score Calculator, APUSH Score Calculator, Time Duration Calculator, free Timecard Calculator, Work Hours Calculator, Arbeitszeitrechner, Stundenrechner, and other useful education and time tools.

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