Research and Efficacy
Research and Efficacy at Curriculum Associates
Our assessment and instruction programs are backed by practical, rigorous research. Every program starts with an extensive research base and is followed by a continuous cycle of research, review, and improvement. The result is a suite of programs proven to help your students in their journey to grade-level proficiency and beyond.

The State of Student Learning
With insights from millions of i-Ready Diagnostic assessments, this annual report offers a nationally representative snapshot of Grades K–8 students' academic achievement and growth.
Efficacy Research
Our literacy and mathematics programs are backed by timely research conducted in a broad range of educational settings. This research meets the criteria for “evidence based” as defined by the Every Student Succeeds Act (ESSA), qualifying these programs for School Improvement funding.
State Impact Research for SBAC English Learners
How is using i-Ready Personalized Instruction with fidelity associated with state test performance? On ...
The Impact of i-Ready Instruction on Students’ Reading a...
Curriculum Associates analyzed data from more than one million students who took the i-Ready Diagnostic i...
Achievement and Growth for i-Ready Classroom Mathematics...
This study evaluated the difference in achievement and growth between students with access to the i-Ready...
A Research-Backed Recovery Metric
Introduced in the 2018–2019 school year to provide an aspirational or “stretch” growth goal for students at any level, Stretch Growth is a novel approach to measuring student progress to proficiency and beyond. We have built a growing body of evidence that shares context on Stretch Growth goal setting on students and their learning over time.
Browse Research Bases
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.
Essential Lessons in Core Numeracy Research Base
i-Ready Pro, the next evolution of i-Ready for older learners, offers a reimagined student experience wit...
Essential Lessons in Foundational Skills Research Base
i-Ready Pro, the next evolution of i-Ready for older learners, offers a reimagined student experience wit...
Phonics for Reading: Research Base
Authored by expert Dr. Anita Archer, Phonics for Reading is a systematic, research-based intervention pro...

The i-Ready Diagnostic and Your State Assessment
Explore how i-Ready Diagnostic scores relate to scores on your state’s summative assessments. Each report provides key data, such as sample demographics, correlations, and linked cut scores, that provide validity evidence for the use of i-Ready Diagnostic in your state.
Research on Unfinished Learning and Learning Recovery
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