Source library
Developmental frameworks behind every milestone
Learning Curve sources from fifteen developmental frameworks across nine countries. Every milestone in our system traces back to at least one of these — most to several. Some are statutory, like the UK Early Years Foundation Stage. Some are clinical, like Bayley-4 and Denver II. Some are large normative datasets, like WHO GSED and Stanford SHQ. Use this page to browse what is behind a recommendation, compare framework windows, and follow the citation chain back to the publishing body.
WHO GSED v2
Multinational (LMIC) · founded 2018 · 0mo – 3y
155 milestones mapped
WHO's open-access developmental scale built on harmonised data from seven low- and middle-income countries.
CREDI
Multinational (LMIC) · founded 2016 · 0mo – 3y
108 milestones mapped
Harvard's open-access caregiver-report tool for child development in low- and middle-income contexts.
Denver II
United States · founded 1967 · 0mo – 6y
40 milestones mapped
One of the longest-running developmental screens, age-banded from birth through six years.
EYFS
United Kingdom · founded 2008 · 0mo – 5y
32 milestones mapped
The statutory framework every English early-years setting follows for children from birth to age 5.
Bayley-4
United States · founded 1969 · 0mo – 3.5y
30 milestones mapped
The clinical gold standard for assessing infant cognitive, motor, language, and socio-emotional development.
MELQO
Multinational · founded 2014 · 4y – 6y
30 milestones mapped
A pre-primary learning outcomes tool jointly developed by UNESCO, UNICEF, the World Bank, and Brookings.
ASQ-3
United States · founded 1995 · 1mo – 5.5y
25 milestones mapped
Parent-completed developmental screen used in pediatric clinics across the US, validated 1 to 66 months.
M-CHAT-R/F
Universal · founded 2001 · 16mo – 2.5y
11 milestones mapped
The 20-item parent-report screen for autism risk between 16 and 30 months, free for clinical use.
ECDI 2030
Multinational · founded 2018 · 2y – 4.9y
8 milestones mapped
UNICEF's SDG-aligned indicator for tracking on-track developmental progress in children aged 24 to 59 months.
WHO MGRS
Multinational (LMIC) · founded 1997 · 0mo – 5y
6 milestones mapped
The WHO's gross-motor milestone supplement from a five-country growth norming study.
Te Whāriki
New Zealand · founded 1996 · 0mo – 5y
5 milestones mapped
Aotearoa New Zealand's bicultural early childhood curriculum, woven across five Mana strands grounded in Te Ao Māori.
Māori (Te Whāriki)
New Zealand · founded 1996 · 0mo – 5y
5 milestones mapped
The Te reo Māori-language strand indicators within Te Whāriki, preserved verbatim with cultural-concept fidelity.
Stanford SHQ
United States · founded 2018 · 0mo – 6y
4 milestones mapped
A longitudinal n=21,861 normative dataset of observable child behaviours from birth to age 5, organised across four developmental subscales.
AMI Practical Life
Multinational · founded 1907 · 3y – 6y
1 milestones mapped
The AMI-recognised practical-life curriculum sequence for Montessori Children's Houses, ages three to six.
Japan MHLW
Japan · founded 1965 · 0mo – 5y
Metadata registered
The statutory checklist used in Japan's national infant and child health checkup system.
HK FHS
Hong Kong · founded 1998 · 0mo – 6y
Metadata registered
Hong Kong's bilingual developmental booklet used across all Maternal and Child Health Centres.
IDB Bogotá
Colombia · founded 2010 · 0mo – 3y
Metadata registered
An IDB-funded Latin American norming dataset for early childhood development outside North American samples.