Normative instrumentOpen access

CREDI (Harvard ECDI)

Harvard Center on the Developing Child · 2020

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

14.1k+

children

Countries

17

countries represented

Age range

Birth

to 3 years

Milestones covered

108

in our corpus

Coverage by age & domain

Each cell shows how many items this source covers in that age band and developmental category. Darker = more coverage.

0–12mo12–24mo24–36mo36–48mo48–60mo60mo+
Body131
Heart1
Curriculum102767

Domains assessed

LanguageCognitionMotorSocial & emotional

How we used it

108 items mapped to canonical milestones via construct_mappings pipeline.

Citation

McCoy, D.C. et al. (2020). CREDI: Concurrent validity of the Global Caregiver-Reported Early Development instrument. BMJ Global Health.

Developmental milestones (108)

Canonical milestones in our developmental ontology that cite this source.

← All evidence sources