The published norms allow normative interpretation of both status and fall-to-spring growth, e.g., an Algebra 1 student at the 55th fall percentile has an expected gain of 8 RIT with growth SD of 9, and an 11-RIT gain places the student at the 62nd growth percentile.¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2024: baselines and conditions change

Subclaims¶

q2 i? Conditional growth norms give the expected fall-to-spring gain and its SD for any fall score, and a student's actual gain can be located in a growth percentile distribution. → Thum 2019

Evidence¶

Thum 2019¶

Thum, Y. M., & He, W. (2019). Achievement and growth norms for course-specific MAP® Growth™ Algebra 1, Geometry, and Algebra 2 tests. NWEA Research Report. Portland, OR: NWEA. https://www.nwea.org/research/publication/achievement-and-growth-norms-for-course-specific-map-growth-algebra-1-geometry-and-algebra-2-tests/

q2 · i? · associational · r2

Worked example using the Algebra 1 norms snapshot (Figure 3.5). The report states the expected fall-to-spring gain at the 55th fall percentile is 8 RIT with growth SD 9, and that a student improving 11 RITs from 233 to 244 falls at the 62nd percentile on the specific growth scale; values are descriptive norms, not test statistics.

"The expected fall-to-spring gain for a student who starts in the fall at the 55th percentile score (233) is 8 with an associated SD of growth of 9"

Discussion¶

Related Claims¶

• Under the 2025 norms, higher math growth expectations lower conditional growth percentiles for higher-growth students — related
• Norm shifts can change teacher evaluation CGP outcomes independently of instructional quality — related
• Norm shifts can raise achievement percentiles for schools serving struggling students even when RIT gains and projected proficiency do not improve — related
• Proficiency projections estimate the probability of reaching Meets proficiency on the state test from fall, winter, or spring RIT scores — related
• Under the 2025 MAP Growth norms, the same reading RIT score can rank higher in achievement percentile due to national declines in achievement — related
• The course-specific MAP Growth norms were built from 747,936 test events administered to 342,821 students in Grades 6–12 across 50 states between Fall 2017 and Spring 2019. — related
• Aspirational Growth defaults to 60th-percentile growth (met by about 40% of similar students) and is selectable from the 55th to 95th percentile in 5-percentile increments — related
• Average growth maintains rather than improves a student's achievement percentile; growth must exceed average for a student to gain ground — related
• Fall-to-spring growth rates in high school grades, particularly in reading, are often close to zero and can be negative — related