Population surveyOpen access
UNICEF MICS6 ECDI
UNICEF · 2019
Normative Research
This is a population-level study. Its data informs the age windows and confidence scores behind our milestone predictions — telling us when most children reach a given milestone, and how much variation exists.
Sample size
335,000+
children
Countries
66
countries represented
Age range
2 years
to 4 yr 11 mo
Milestones covered
—
in our corpus
Domains assessed
Literacy & numeracySocial & emotionalLearning approachesPhysical
How we used it
Population-level child response data across 66 countries. P33 item-level canonical mapping in progress (20 items pending).
Citation
UNICEF (2019–2023). Multiple Indicator Cluster Surveys (MICS6) Early Child Development Index. New York: UNICEF.
66-country figure derived from 66 ch.sav files processed during P31. Thailand was missing from the source ZIP — do not state 'all MICS6 countries'.
Item mapping in progress
This source has been ingested into our data pipeline. Item-level alignment with our canonical ontology is pending — it will appear here once complete.