About the Measure

Domains Mental health and wellbeing, Social and Emotional Competence
Key stages Key Stage 1
Subscales Physical health and well-being; Social competence; Emotional maturity; Language and cognitive development; Communication skills and general knowledge
Description The Early Development Instrument is a questionnaire completed by kindergarten teachers in the second half of the school year that measures children’s ability to meet age-appropriate developmental expectations. It should be used as a population-level screener to assess change or status here, rather than to derive scores for individual children.
Example Would you say that this child comforts a child who is crying or upset?
Link https://edi.offordcentre.com/wp/wp-content/uploads/2015/11/EDI-ON-2015-Eng-Jan-20.pdf

Implementation details

No. of items 103
Format Likert
Respondent Teacher
Scoring Standardised
Time 0
Age 3.5-6.5
Cost single purchase Basic license $2
Cost per child Contact offord c

Psychometric details

UK norms No
Cronbach's α .84-.96
Test retest Not reported
Inter-rater reliability Between educators, r= [.53,.80], p< .01; Between parents and educators, r= [.36,.64], p< .01
EFA 14-factor obliqu
CFA 5 separate ML-CFAs
Criterion validity Early Child Development Instrument language domains significantly related to Peabody Picture Vocabulary Test, r= [.31,.47]
Construct validity Not reported
Concurrent validity Not reported
Predictive validity Not reported
Responsiveness Not reported
Floor/Ceiling Not reported
References Janus, M. & Offord, D.R. (2007). Development and psychometric properties of the Early Development Instrument (EDI): A measure of children's school readiness. Canadian Journal of Behavioural Science, 39(1), 1-22. doi:10.1037/cjbs2007001