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Early Development Instrument (2018)


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The Early Development Instrument (EDI) is a teacher-completed instrument that measures children's ability to meet age-appropriate developmental expectations at school entry on five domains:
  1. Physical health and well-being;
  2. Social knowledge and competence;
  3. Emotional maturity;
  4. Language and cognitive development; and
  5. General knowledge and communication skills
Children who score below the 10th percentile in one or more EDI domains are considered to be vulnerable and are more likely to struggle later on in life.

EDI Scores for 2018 are grouped into Service Delivery Areas (2017).

More information: Notes:
  1. Vulnerability was calculated using the Ontario Baseline cut-points.
  2. Records are aggregated to achieve anonymity
  3. Service Delivery Areas that have 15 or less responses are suppressed.

Category: Demographics
Group Name: Child Care
Data Steward: Human Services Department, Region of Peel
Data Custodian: Strategic Planning, Policy and Partnerships, Human Services Department
Data Currency Comments: Last Update: November 2019
Frequency: Every 3 years
Data Accuracy Comments: Records are aggregated to achieve anonymity and Service Delivery Areas that have 15 or less responses are suppressed.

Source of Data: Peel EDI 2018.
Attributes: Children,early years,language,education,vulnerable,school,services,child,early development instrument,EDI,service delivery area 2017,readiness,social
Geographic Coverage: Peel Region
Coordinate System:
Further Information:

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