MAP Growth state-test correlations exceed 0.8 for most Grade 3-8 concurrent indices, with mathematics correlations higher than reading¶

Claim · All claims
Evidence · 1 study · associational r2 · q3
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2024: tool and model accuracy changes quickly

Subclaims¶

q3 i? For Grades 3-8, almost all concurrent validity correlations between MAP Growth and state summative scores were above 0.8, and mathematics tended to show higher correlations than reading at all grades. → He 2021

Evidence¶

He 2021¶

He, W., & Meyer, P. (2021). MAP Growth universal screening benchmarks: Establishing MAP Growth as an effective universal screener. NWEA. https://www.nwea.org

q3 · i? · associational · r2

Descriptive statistics (Tables 2.3 and 2.4) report correlations between linked state scores and MAP Growth for each term; the study treats correlations above 0.8 as strong criterion validity evidence and notes "mathematics tended to see higher correlation coefficients" than reading.

"For Grades 3–8, almost all concurrent validity indices were above 0.8 for both subjects, and a large proportion of predictive validity indices were either above 0.8 or at least at the high end of 0.7."

Discussion¶

Related Claims¶

• MAP Growth RIT scores correlate strongly (r = 0.92–0.93) with state summative mathematics scores in the Minnesota MCA-III linking study — a narrower finding that bears on this claim
• The study collects concurrent validity evidence on the IRLA framework as a potential RTI screening tool — related
• MAP Growth spring RIT cut scores classify students as proficient or not proficient on the MCA-III Mathematics test with 0.87–0.90 overall accuracy — related