Ontario Early Development Instrument student level data cycle 1, 2 and 3

Data from cycle 1 (2004-2006), cycle 2 (2007-2009) and cycle 3 (2010-2012) of Early Development Instrument data collection. Data available at postal code level.

The Early Development Instrument tool developed by Offord Centre for Child Studies, is a population-based measure of kindergarten children's readiness to learn in school, completed by senior kindergarten teachers.