Curriculum Associates' i-Ready® Diagnostic Receives Near-Perfect Ratings from the National Center on Intensive Intervention (NCII)

Online reading and mathematics assessment for grades K–12 meets high psychometric and progress monitoring standards

North Billerica, MA, April 21, 2016

Curriculum Associates' i-Ready Diagnostic Diagnostic for Reading and Mathematics recently received near-perfect ratings in the Academic Progress Monitoring Tool category from the National Center on Intensive Intervention (NCII) of the American Institutes for Research. The ratings, which are based on psychometric and progress monitoring standards, signifies the validity and reliability of the online assessments for grades K–12.

NCII is a nationally recognized organization designed to support data-based individualization in reading, mathematics, and behavior for students with severe and persistent learning and/or behavioral needs. NCII's Technical Review Committee reviewed i-Ready Diagnostic's evidence of reliability of performance level, reliability of slope, validity of performance level, predictive validity of slope improvement, bias analyses, subgroup data, alternate form equivalence, end-of-year benchmarks, and rates of improvement. The program received a “Convincing Evidence” rating, the highest designation, in most categories.

“The near-perfect NCII ratings further reiterate the impact of i-Ready Diagnostic as part of the teaching and learning processes,” said Rob Waldron, CEO of Curriculum Associates. “To improve student outcomes, it is important for educators to individualize their instruction and monitor students' growth and i-Ready effectively helps teachers do both.”

The i-Ready Diagnostic ratings are available on the NCII website at

About i-Ready
Built to address the rigor of the new standards, i-Ready helps students make real gains. i-Ready collects a broad spectrum of rich data on student abilities that identifies areas where a student is struggling, measures growth across a student's career, supports teacher-led differentiated instruction, and provides a personalized instructional path within a single online solution.

To learn more about i-Ready, visit

About Curriculum Associates
Founded in 1969, Curriculum Associates, LLC designs research-based print and online instructional materials, screens and assessments, and data management tools. The company's products and outstanding customer service provide teachers and administrators with the resources necessary for teaching diverse student populations and fostering learning for all students. 


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