Evidence studies
Tier 3 research
Take a closer look at the research and see how our Tier 3 solution helps teachers close the gap for readers requiring intensive support.
Effective, individualized instruction—backed by research
Multiple studies in North Carolina show how 95 RAP™ (formerly HillRAP) meets ESSA Level 3 evidence, with measurable reading gains even within a single year.
Impressive, consistent growth
Students showed accelerated gains in decoding, fluency, comprehension, and word recognition—exceeding typical year-to-year progress.
Supporting learning at all levels
95 RAP proved effective for students with disabilities, older students, English learners, and those from economically disadvantaged backgrounds.
Immediate progress, potent momentum
Most learners saw substantial gains in the first year, with many achieving even greater growth when continuing 95 RAP for a second year.
Impact across grades and settings
In multiple counties and instructional environments spanning early elementary through middle school, 95 RAP delivered powerful results.
IDA-accredited, with the highest distinction
95 RAP is recognized by the International Dyslexia Association (IDA), with Accreditation Plus KPEERI (Knowledge and Practice Examination for Effective Reading Instruction), the highest level of distinction awarded by IDA.
Award-winning literacy intervention
These prestigious awards celebrate the innovative, research-based 95 RAP, empowering educators and accelerating student literacy success.
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2025: Tech & Learning Best of 2025, 95 Tier 3 Literacy Solution (95 RAP)
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2025: EdTech Awards, “Cool Tool” Finalist
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2024: Tech & Learning, Best for Back to School
It’s such a great program. It’s very individualized so you don’t get caught up on any one skill. Each student has their own path, and if they get stuck or you notice they are slipping, you can add in materials or strategies for reteaching to help. It really fits the needs for Tier 3 intervention.
Amber Bottoms, ELA Specialist
See evidence in action
Explore our case studies and see how 95 RAP helps the most challenged students succeed.
95 RAP shines a light on Tier 3 literacy intervention in North Carolina
It’s very systematic. It’s linear. They’re building on each skill, and if there was a digraph or a blend they struggled with, they are able to focus on that and then build from there.
Lynn Zellmer, Intervention Instructor Franklin County Schools, NC
Interested in learning more?
Connect with our literacy experts to dive deeper into our proven solution for intensive intervention.
Meeting the highest standards
Learn more about how our ecosystem delivers effective, evidence-based literacy instruction.
Tier 1 research
Review the research demonstrating the effectiveness of our core instruction products – designed to promote foundational reading skills and reduce the need for intervention
Tier 2 research
See the studies that highlight how our intervention products support teachers in closing achievement gaps and help students exit intervention faster.
One95 Literacy Ecosystem™ research
Review research demonstrating how combining the aligned products of One95 Literacy Ecosystem results in consistent, evidence-based instruction that accelerates student outcomes across all tiers.