Middle Years Development Instrument (MDI)

Middle Years Development Instrument (MDI)

What is The Middle Years Development Instrument (MDI)?

The Middle Years Development Instrument (MDI) is a self-report questionnaire completed by children in grade 4 and grade 7.  The questionnaire looks at 5 areas of development – social & emotional development, connectedness, school experiences, physical health & well-being and constructive use of after school time.

Data from the MDI is used by the Human Early Learning Partnership (HELP), out of the University of British Columbia, to produce summaries, maps and other graphics for communities throughout BC.  This information gives children a voice, summarizing their thoughts and experiences in school and community and helps agencies and groups such as the Delta Middle Years Committee understand children’s psychological and social worlds.  These groups can then create opportunities and environments to better serve children 6-12 years old and their families.

To learn more, you can go to the Human Early Learning Partnership Middle Years Development site and/or see the following HELP MDI Fact Sheet:


Delta’s MDI Data

The Human Early Learning Partnership (HELP) has summarized MDI data for communities in Delta.  To learn more about trends in the lives of middle years children in Delta, you can download the document below.  As new documents are prepared by HELP, they will be uploaded to this page.



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