
Our research
Amplify CKLA
Using a fundamentally different approach to language arts, Amplify Core Knowledge Language Arts® (CKLA) is built on decades of early literacy research that demonstrates the importance of wide-ranging background knowledge and explicit and systematic instruction in foundational skills. Increasingly more districts are choosing Amplify CKLA because they know they’ll see results.
Amplify CKLA meets the criteria for Tier I-Strong Evidence as an education intervention under ESSA.
Efficacy
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[TIER I ESSA EVIDENCE] Building knowledge boosts comprehension: Amplify CKLA outperformed a control group on proximal and standardized tests. |
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An evaluation of Core Knowledge curriculum in charter schools: Reading scores significantly improved and income-based gaps were eliminated. |
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NYC CKLA early literacy pilot: CKLA students’ literacy gains more than doubled those of students at demographically similar schools. |
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AZ CKLA efficacy research report: CKLA significantly improved outcomes for students overall, as well as economically disadvantaged and Latino students. |
Case studies
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Aldine Independent School District, Texas: Amplify’s early literacy suite boosts reading proficiency from 30% to 50%. |
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Allen Parish School District, Louisiana: After just one year, student reading proficiency rose from 58% to 80%. |
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Oak Harbor School District, Washington: Kindergarten reading proficiency improved by 19% and Grade 1 by 31% in 3 years. |
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West Jefferson Hills School District, Pennsylvania: Students reach the 98th percentile among their peers nationwide after implementing Amplify. |

Explore more of our research.
Learn more about the research behind our programs.
Core curriculum
Amplify ELA
Amplify ELA is designed specifically for middle school, based on extensive resea...
Core curriculum
Amplify Science
Amplify Science is rooted in the Lawrence Hall of Science’s Do, Talk, Read, Writ...
Supplemental
Boost Reading
Leveraging compelling storytelling and the latest research, Boost Reading (forme...
Assessment
mCLASS®
Based on over 30 years of research, mCLASS® is the gold-standard assessment and...