A dataset with developmental scores at the item level for 667 unique children. Cross-sectional.



A data.frame with 667 rows and 29 variables:

ctrcdchrCountry code (ISO 3166-1 alpha-3)
cohortchrCohort name
cohortnchrCohort number
subjidintChild number
agedaysintAge (days)
sexchrEither "male" or "female"
gagebrthintGestational age (days)
barxxx0010/1Smiles in response to an adult or his/her voice
barxxx0020/1Makes sounds spontaneously or in response to a stimulus
barxxx0030/1Has head control while being pulled to stand upright
barxxx0040/1Holds a toy with one or both hands when it is presented
barxxx0050/1Rolls from back to stomach
barxxx0060/1Sits without support for some time
barxxx0070/1Starting to crawl
barxxx0080/1Grasps with fingertip to to take small objects
barxxx0090/1Stands up when being pulled
barxxx0100/1Walks with support, holding on to a railing, furniture or ad
barxxx0110/1Stands for "some moments"
barxxx0120/1Walks alone with "some steps"
barxxx0130/1Drinks well from a cup or glass
barxxx0140/1Says more than 5 words
barxxx0150/1Jumps in place
barxxx0160/1Washes and dries hands
barxxx0170/1Says his full name
barxxx0180/1Copies a circle
barxxx0190/1Balances on one foot for more than 5 seconds
barxxx0200/1Bowel and bladder control
barxxx0210/1Copies a square well
barxxx0220/1Recognizes 4 colors


The combination of subjid and agedays identifies each unique visit (row).

Instruments: Barrera Moncada (bar).


Paxson C, Schady N. Does money matter? The effects of cash transfers on child development in rural Ecuador. Economic development and cultural change. 2010;59:187-229.