where we can follow children over time, there are few substantive changes in scores once children enter school. Our results …

, and parenting quality in a developing country. They use a sample of over 3,000 predominantly poor pre-school age children … for older than younger children, and there is greater dispersion in scores among older children. They find that household … socioeconomic characteristics, in particular wealth and parental education, are "protective"-children from wealthier households with …