The EDI is a short questionnaire completed by kindergarten teachers across Canada and internationally which measures children’s ability to meet age appropriate developmental expectations.

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News & Events

CanNECD studies how neighbourhoods help and hinder child development

Where you live can play a major role in your health. It can also play a major role in how your children develop.

EDI featured in Hamilton Vital Signs report

The Early Development Instrument has been included in Hamilton’s 2018 Vital Signs report as a key measure of the city’s health.

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Latest Reports

Australian study shows early association between maltreatment and development

February 22, 2018

The long-term effects of childhood maltreatment are well known. It increases the risk of mental health problems, crime, and violence. But research has mostly looked at outcomes in middle childhood and adolescence, overlooking early childhood.

Does a mother’s sleep during pregnancy affect children’s development?

January 26, 2018

Sleep is incredibly important for children’s development. Getting 11-12 hours of sleep a day is associated with healthy development. Whereas getting too little sleep is associated with a host of problems.

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Completed EDIs

The EDI information collected for five-year-old children in Canada since 2004

12 of 13

Provinces & territories

Canadian provinces and territories EDI has been implemented in


Of children vulnerable

The number of children vulnerable in at least one developmental domain





The number of children vulnerable in at least one developmental domain by gender

Global Reach

Countries in which the EDI
has been implemented: