About the Measure

Domains Perceptions of Self, Resilience and coping, Social and Emotional Competence
Key stages Key Stage 2, Key Stage 3
Subscales Social and emotional development; Connectedness to peers and adults at school, at home, and in the neighbourhood; School Experiences, Physical health and well-being; Constructive use of time after-school
Description The Middle Years Development Instrument is a self-report questionnaire completed by children in Grade 4 and Grade 7. It asks them how they think and feel about their experiences both inside and outside of school.
Example I feel sorry for other kids who don't have the things that I have
Link http://earlylearning.ubc.ca/mdi/

Implementation details

No. of items 101
Format Likert
Respondent Self
Scoring Standardised
Time 0
Age 9-12
Cost single purchase License cost var
Cost per child -

Psychometric details

UK norms No
Cronbach's α .65-.87
Test retest Not reported
Inter-rater reliability Not reported
EFA 3 separate EFAs<
CFA 3 separate CFAs
Social and emotional development
CFI= 0.96
RMSEA= 0.05
CFI= 0.98
RMSEA= 0.05
School experiences
CFI= 0.99
RMSEA= 0.04
Criterion validity Not reported
Construct validity Not reported
Concurrent validity Not reported
Predictive validity Not reported
Responsiveness Not reported
Floor/Ceiling Not reported
References Schonert-Reichl, K.A., Guhn, M., Gadermann, A.M., Hymel, S., Sweiss, L. & Hertzman, C. (2013).Development and Validation of the Middle Years Development Instrument (MDI): Assessing Children’s Well-Being and Assets across Multiple Contexts. Social Indicators Research, 114 (2), 345-369.