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

Results released for Quebec Survey of Child Development in Kindergarten

The second province-wide implementation of the EDI has taken place in Quebec, and the results show 27.7% of children are vulnerable in at least one area of their development. This is an increase from the 2012 collection, which showed 25.6% of children were vulnerable.

Monitoring children’s healthy development around the world

The EDI started in Canada in the late 90s, and since that time has been collected on over 1.5 million Canadian children. But the EDI has also crossed the border and grown in popularity internationally.

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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

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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: