Linking Study

i-Ready Diagnostic: Linking Study with the IAR


  • Subject: Mathematics, Literacy
  • State: Illinois
  • Grades: 3-8
  • Study Year: 2018–2019
  • Program: i-Ready Diagnostic
  • Test Alignment: Illinois Assessment of Readiness (IAR)

Published August 2021

How do i-Ready Diagnostic results connect to state testing? This research investigates the data from student Diagnostic scores in relationship to the 2019 Illinois Assessment of Readiness (IAR), showing a high correlation between the two. Download the full report to learn more about student outcomes in Illinois with i-Ready Personalized Instruction.