Research & Efficacy

Proven to Help Students Succeed

i-Ready Personalized Instruction Efficacy Study Reviewed by Evidence for ESSA

This independent, evidence-based rating verifies that i-Ready meets evidence standards defined in the Every Student Succeeds Act (ESSA).

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Overview   |   Foundational Research   |   Impact and Efficacy   |   Linking Studies    |   Unfinished Learning


Research and Efficacy

Our assessment and instruction programs are backed by the industry’s most practical and applicable research. Every program we provide starts with an extensive research base and is followed by a continuous cycle of research, review, and improvement. The end result is a suite of programs proven to help your students succeed.

Foundational Research

Our assessment and instructional solutions are grounded in research to deliver rigorous instruction and comprehensive support to help students at all levels, from all backgrounds, achieve their greatest possible gains.

The Research Base: Magnetic Reading Foundations Grades K–2

This research base provides an overview of Magnetic Reading Foundations for Grades K–2’s foundational research and pedagogical approach.

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The Research Base: Magnetic Reading Grades 3–5

The research base linked below provides an overview of Magnetic Reading’s foundational research and pedagogical approach.

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The Experts behind i-Ready and Ready

Meet the program authors, technical advisors, and efficacy advisors who help build and improve our products.

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Executive summaries about i-Ready.

The Research Base: i-Ready Personalized Instruction

The Executive Summaries linked below provide an overview of our foundational research base and pedagogical approach.

MATHEMATICS | READING

High Ratings from NCII

i-Ready Diagnostic received high ratings from the National Center on Intensive Intervention (NCII).

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Putting the Science of Reading to Work

Learn how our programs were built to align with the core principles of the Science of Reading.

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Impact and Efficacy

iReady and Ready are backed by timely research conducted in diverse educational settings. This research meets the criteria for “evidence-based” as defined by the Every Student Succeeds Act (ESSA), qualifying these programs for Elementary and Secondary School Emergency Relief (ESSER) and School Improvement funding.

i‑Ready Efficacy: Research on i-Ready’s Impact

Research support for iReady and ESSA evidence

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Research on Program Impact of Ready Mathematics Blended Core Curriculum

Research support for Ready Mathematics and ESSA evidence

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Ready Efficacy: Research on Ready’s Impact

Research support for Ready supplemental programs and ESSA evidence

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Impact of Magnetic Reading on Student Reading Achievement

This research report examines the impact of Magnetic Reading on student achievement in Grades 3–5.

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Linking Studies

The iReady Diagnostic is highly correlated with leading national and state summative tests.

Alabama

i-Ready Diagnostic: Correlation Study with Alabama’s Comprehensive Assessment Program (ACAP)

Alaska

i-Ready Diagnostic: Linking Study with Alaska System of Academic Readiness (AK STAR)

Arizona

i-Ready Diagnostic: Linking Study with Arizona’s Academic Standards Assessment (AASA)

California

i-Ready Diagnostic: Linking Study with the California Assessment of Student Performance and Progress (CAASPP)

Colorado

i-Ready Diagnostic: Linking Study with Colorado Measures of Academic Success (CMAS)

Connecticut

i-Ready Diagnostic: Linking Study with Smarter Balanced Assessment (SBA) in Connecticut

Florida

i-Ready Diagnostic: Correlation Study with Florida Assessment of Student Thinking Progress Monitoring 1 and 2 (FAST PM1 and PM2)

Georgia

i‑Ready Diagnostic: Correlation Study with Georgia Milestones Assessment System (GMAS)

Illinois

i-Ready Diagnostic: Linking Study with Illinois Assessment of Readiness (IAR)

Indiana

i‑Ready Diagnostic: Linking Study with Indiana Learning Evaluation Assessment Readiness Network (ILEARN)

Kentucky

i‑Ready Diagnostic: Linking Study with Kentucky Summative Assessment (KSA)

Louisiana

i-Ready Diagnostic: Linking Study with the Louisiana Educational Assessment Program (LEAP 2025)

Maryland

i-Ready Diagnostic: Linking Study with Maryland Comprehensive Assessment Program (MCAP)

Massachusetts

i-Ready Diagnostic: Linking Study with the Massachusetts Comprehensive Assessment System (MCAS)

Michigan

i‑Ready Diagnostic: Linking Study with Michigan Student Test of Educational Progress (M‑STEP)

Mississippi

i‑Ready Diagnostic: Linking Study with Mississippi Academic Assessment Program (MAAP)

Missouri

i-Ready Diagnostic: Linking Study with Missouri Assessment Program (MAP)

New Jersey

i-Ready Diagnostic: Linking Study with New Jersey Student Learning Assessments (NJSLA)

New York

i‑Ready Diagnostic: Linking Study with New York State Testing Program (NYSTP)

North Carolina

i-Ready Diagnostic: Correlation Study with the North Carolina End-of-Grade Tests (NC EOG)

Ohio

i‑Ready Diagnostic: Linking Study with Ohio’s State Tests (OST)

PARCC

i-Ready Diagnostic: Linking Study with the Partnership for Assessment of Readiness for College and Careers (PARCC) Test

Pennsylvania

i-Ready Diagnostic: Linking Study with Pennsylvania System of School Assessment (PSSA)

Rhode Island

i-Ready Diagnostic: Correlation Study with Rhode Island Comprehensive Assessment System (RICAS)

SBA

i-Ready Diagnostic: Linking Study with the Smarter Balanced Assessment (SBA)

Texas

i-Ready Diagnostic: Correlation Study with State of Texas Assessments of Academic Readiness (STAAR)

Virginia

i-Ready Diagnostic: Linking Study with the Virginia Standards of Learning (SOL)

Wisconsin

i-Ready Diagnostic: Linking Study with the Wisconsin Forward Exam

West Virginia

i-Ready Diagnostic: Linking Study with the West Virginia General Summative Assessment (WVGSA)

Research on Unfinished Learning 

Learn about its impact and where to focus your efforts.