What Is a Good MAP Growth Score? 2025 Norms and the IQ Question

There is no single good MAP Growth score, because the number that counts is a percentile and it depends on grade, subject and testing season. On NWEA's 2025 norms the median fifth-grader scores RIT 206 in math and 204 in reading in the fall, and a fifth-grader needs 233 in math or 232 in reading to reach the 95th percentile. RIT is the scale MAP Growth reports on; it runs from 100 to 350 and is the same one used before the norms changed. What NWEA updated is the reference group, so the same RIT score now often earns a different percentile than under the 2020 norms. This guide gives the official 2025 figures for grades 3, 5 and 8, shows how far they moved since 2020 cell by cell, and explains why a MAP percentile is not an IQ.

What are the 2025 MAP Growth norms built on?

NWEA published the 2025 norms in August 2025, and its technical manual describes the sample: 116,225,831 test events from 13,804,182 students in 29,720 public schools and 7,000 districts, spanning six testing terms from Fall 2022 through Spring 2024, about 30% of US public schools. The 116 million is the pool of eligible test events. Each student-level model was fitted to a training sample of about 80,000 students drawn from 2,500 randomly sampled schools. A percentile, in the manual's wording, is the share of the reference population scoring at or below a given RIT score within a subject and grade.

Two limits are easy to miss. The tables apply at set points in the school year: week 4 of instruction for fall, week 20 for winter and week 32 for spring, and the manual says they should not be used outside those weeks. And the 2025 tables stop at the 95th percentile, in steps of 5, whereas NWEA's 2020 study printed every percentile up to the 99th, so a published 99th-percentile MAP score is a 2020 number or someone's estimate.

What RIT score is the 50th, 90th and 95th percentile?

The figures below are the RIT scores needed to reach the 50th, 90th and 95th percentile, in that order, in the 2025 student norms (Appendix B of the technical manual), with the 2020 value in brackets from NWEA's 2020 norms study. Math comes first in each line, then reading.

• Grade 3, fall: math 184 (188), 204 (206), 210 (211); reading 185 (187), 208 (208), 215 (214)
• Grade 3, spring: math 199 (201), 221 (219), 227 (224); reading 194 (197), 217 (218), 224 (224)
• Grade 5, fall: math 206 (209), 227 (229), 233 (234); reading 204 (204), 226 (225), 232 (231)
• Grade 5, spring: math 216 (219), 240 (240), 246 (246); reading 208 (211), 230 (231), 237 (237)
• Grade 8, fall: math 222 (225), 246 (249), 252 (256); reading 216 (218), 238 (240), 244 (246)
• Grade 8, spring: math 229 (230), 255 (256), 262 (263); reading 218 (222), 240 (243), 246 (249)

How far did the percentiles move since 2020?

NWEA's blog says that as a general rule the same RIT score now corresponds to a higher percentile, and gives one example: a fifth-grade reading score that placed a student at the 50th percentile now places them at the 56th. We checked it against the two sets of official tables. It holds in winter and spring, where the 2020 median (209 and 211) sits at about the 55th percentile of the 2025 table, and it does not hold in the fall, where the fifth-grade reading median is 204 in both sets.

Across grades 1 to 8, the three testing seasons and both subjects, the RIT needed for the 50th percentile fell in 47 of 48 cells: all 24 in math and 23 of 24 in reading, with one unchanged. The average fall was 2.6 points in math and 2.7 in reading, from 1 to 5 points in math and 0 to 4 in reading. The 95th percentile tells a different story. NWEA's blog says it may become easier to qualify for a gifted program with a 95th-percentile cutoff, and on average that is true but small. Across the same 48 cells the RIT needed for the 95th percentile fell in 25, was unchanged in 11 and rose in 12, and the average change was 0.3 points lower in math and 0.9 lower in reading. All eight rises in math are in grades 1 to 4, four of them in the spring: spring grade 3 math went from 224 to 227 and spring grade 4 from 236 to 240. For a third-grader tested in spring math, the bar for the 95th percentile got higher.

How large is a 2.6-point drop? To judge size you need the spread of scores. NWEA's tables give the 25th and 75th percentiles, and for a roughly bell-shaped distribution the gap between them is about 1.349 standard deviations. For grades 3 to 8 that gives a standard deviation of about 17 RIT points, so the median shift is about 0.16 of a standard deviation, which on an IQ-style scale with a mean of 100 and a standard deviation of 15 is about 2.4 points. That is a unit conversion and nothing more. NWEA calls the downward shift consistent with its pandemic research and says the norms also reflect its newer item-selection algorithm, which raised typical math growth; none of it is a statement about intelligence.

How accurate is a MAP score?

NWEA publishes a standard error of measurement (SEM), the amount a score would be expected to vary between sittings for reasons unrelated to the child. Its help pages put the typical SEM of a MAP Growth test at 2.8 to 3.5 RIT points; the design target is 3.5 and a test is valid up to 5.5. NWEA says there is a 68% chance a student's true score lies within one SEM of the reported score and a 95% chance within two, and its technical report puts reliability at about 0.95. It recommends using the RIT range with the SEM rather than a single score. A similar band applies to i-Ready, whose technical manual reports standard errors of 6.3 to 6.5 points in math and 9.3 to 11.1 in reading; see i-Ready scores by grade level.

Set that beside the tables. In spring grade 5 math, six points separate the 90th percentile (240) from the 95th (246). A child whose true standing is the 95th percentile can land two SEM below the line on a bad morning, which is why a single MAP sitting is a poor basis for a hard cutoff. The same logic applies to IQ scores, as our guide to the IQ score margin of error shows.

Is a MAP Growth score an IQ?

No. NWEA describes MAP Growth as a measure of academic achievement. Its guide to gifted and talented placement lists it as one of multiple data points and keeps ability measures separate, naming the Cognitive Abilities Test as an example. Its examples of state rules show the split: in Ohio a student qualifies in a specific academic area with a score at or above the 95th percentile on an approved test in that area, while in Nevada the rule is the 98th percentile on an individually administered test of cognitive ability. The guide adds that no one criterion applies across all programs, services or states. NWEA's June 2025 post on local norms argues that national percentiles say little about who is underchallenged in a given school, and that school or district norms find a more diverse group of advanced learners. Another widely used school test, the Iowa Assessments, moved to new 2024 norms in 2025; see what is a good Iowa Assessment score.

On the IQ scale, where the mean is 100 and the standard deviation 15, the 90th percentile is 119, the 95th is 125 and the 98th is 131; the IQ percentile calculator returns the same figures. They are arithmetic, not MAP conversions. A MAP percentile ranks a child among US public-school students of the same grade, tested in the same instructional week, on an achievement scale; an IQ places a person in the general population on an ability scale. We found no published correlation between MAP Growth and a cognitive-ability test, so a chart claiming a MAP-to-IQ conversion is making an assumption. For how similar school tests relate to IQ see our guides to CogAT and NNAT scores, achievement tests and IQ tests, CAT4 scores and universal screening for gifted programs, and for cut-offs on actual IQ scales see gifted cutoff scores.

What is the context for the 2025 shift?

NWEA's blog says the downward shift is consistent with its COVID-19 research. Its February 2026 research brief, From loss to recovery, looked at more than 5 million students in 9,326 schools and found that about 1 in 3 schools had recovered in either math or reading, and about 1 in 7 in both, where recovered meant a fall 2024 average at least equal to fall 2019. The same pandemic-era pattern appears in international data; see our report on PISA 2025 results.

What should parents and teachers do with a MAP report?

• Read the percentile for the child's grade, subject and season, not a chart from another year or testing week
• Use the RIT range, about 3 points either side, before acting on a cutoff
• If a program uses a 95th-percentile line, ask which norms it uses: the 2025 line is a slightly different RIT from the 2020 line, and in early-grade spring math it is higher
• Compare a child with NWEA's growth projection from season to season, which is built for that, rather than comparing percentiles across years
• Do not translate a percentile into an IQ; if you want a result on the IQ scale, take a test built for that

The IQ Metrics test reports on the standard scale, the kids IQ test covers younger test-takers, and the IQ bell curve shows where a result sits. For the exam that follows MAP in many families' plans, see our guides to ISEE scores and HSPT scores.

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