Karyn Lewis
Karyn Lewis is vice president of Research and Policy Partnerships at NWEA where she leads a team of researchers who operate at the intersection of K–12 education research, practice, and policy.Posts by author
Webinar
Watch and learn: The 2025 MAP Growth norms
MAP® Growth™ norms are updated every few years to reflect current student performance. In 2025, the update brings important changes to both achievement and growth norms—while keeping the RIT scale stable.
Article
Address opportunity gaps
MAP® Growth™ can help teachers understand where students are in their learning journey and help close gaps in learning.
Fact sheet
Family guide to MAP Growth
Our MAP® Growth™ fact sheet for families covers all the basics: what the assessment is, what it measures, how it works, and what a RIT score is.