This is the technical appendix to “Hot test days, lower math scores: How heat affects student achievement” research report that examines the impact of environmental temperatures on student performance in math and reading, and whether those effects are more extreme for students in high-poverty schools, where cooling conditions may be less reliable.

This NWEA research report examines the impact of environmental temperatures on student performance in math and reading, and whether those effects are more extreme for students in high-poverty schools, where cooling conditions may be less reliable.

NWEA’s MAP Growth National Dashboard provides timely trends and data on U.S. student academic achievement and growth for grades K-8. This free public tool supports district leaders, state and federal policymakers, and other education stakeholders in interpreting local data within a broader national and state context. It helps identify areas of strength, shine light on disparities, and ground policy conversations in evidence.

This short research brief highlights trends seen in the latest data released in the NWEA Map Growth National Dashboard. In this first edition of Trend Snapshots, key findings from Spring 2025 data highlight a modest, incremental recovery post COVID, but stalled progress in reading achievement.

This is the accompanying technical appendix to the MAP Growth National Dashboard providing more details of the data and describing more fully the sample and methods used within the dashboard.

This user guide explains how to navigate the MAP® Growth™ National Dashboard, understand the key metrics and terms, make appropriate comparisons of data, and communicate findings responsibly. This guide also includes a robust “Frequently Asked Questions” section that provides in-depth answers about the dashboard and its uses.

The report documents the process NWEA followed to determine and validate the cut scores for fall, winter, and spring that can be used to identify students in Grades K–8 who have severe learning difficulties and need intensive intervention in reading and mathematics.

An added memorandum presents the updated threshold scores by grades and terms for MAP Growth Mathematics and Reading.