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Early Development Instrument      
Early Development Instrument  Logo
The early years are an important time in the development of a child. The Early Development Instrument (EDI) is a checklist completed by senior kindergarten teachers that assesses children's readiness to learn at school in five domains: 
  • physical health and well-being 
  • social competence
  • emotional maturity 
  • language and cognitive development, and
  • communication skills. 
The EDI is intended to help communities assess how well they are doing in supporting children and families. The EDI results report on groups of children at the school, neighborhood and riding levels. The next EDI assessment will take place in 2018.
For more information on research on school readiness, please visit the Offord Centre at