Rapid response study · Completed

Understanding How Tiered Intervention Platforms Improve Academics

How are the district’s intervention programs working to improve literacy and numeracy?

District Impact

This study helped MNPS refine how it supports schools to implement the Navigator Program.

The research team created a “tip sheet” for elementary and middle school leaders based on the enabling conditions that led to sustained reading or math gains on the Fastbridge screener. 

About the Research

A series of rapid response studies in 2024 and 2025 examined student growth and school-level implementation across five interventions. Students demonstrated growth across all interventions, with minimal differences by intervention type. However, growth varied meaningfully across schools, suggesting implementation differences mattered more than the specific intervention. Follow up qualitative analyses of high-growth schools examined common approaches to tiered implementation and enabling conditions that supported more effective use.

Study Team

METRO NASHVILLE PUBLIC SCHOOLS

Katie Pattullo
Director, Multi-Tiered Intervention System of Supports

Casey Souders
Data Coach

Melissa Brock  
Coordinaor, Dyslexia Specific Instruction and Intervention

Krista Davis
Director, Research and Evaluation

VANDERBILT UNIVERSITY

Marcia Barnes
Professor of Special Education

Kelley Durkin
Research Assistant Professor

Luke Rainey
Senior Research Coordinator