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.¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? The norming sample comprised 747,936 course-specific test events from 342,821 students, including 452,942 Algebra 1 events, 190,292 Geometry events, and 104,702 Algebra 2 events. → 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

Norming sample selection section reporting the full user-norming dataset: "747,936 course-specific MAP Growth test events administered to 342,821 students from 50 states between Fall 2017 and Spring 2019", drawn from students in Grades 6–12 who took a course-specific test in either the 2017 or 2018 school year, but not both.

"This norming sample selection approach resulted in 747,936 course-specific MAP Growth test events administered to 342,821 students from 50 states between Fall 2017 and Spring 2019"

Discussion¶

Related Claims¶

• True-score-model correlations among fall, winter, and spring scores exceed 0.90 for almost all course-specific tests, indicating strongly correlated administrations across terms. — related
• 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. — related
• Updated norms are heavily weighted toward 2021/22 pandemic-era performance, with lower norm-group performance than the prior norms — related
• The 2025 MAP Growth norms were derived from one of the largest norming samples ever created, spanning 116,225,831 test events from 13,804,182 students in 29,720 schools across 7,000 districts over six testing terms — related