A look at some of the many possible factors that may explain variations in child development.
This is the latest release
Four surveys of the children have been carried out so far - at age nine months, three, five and seven years.
This report details how regression analysis was used to ascertain the extent to which variations in child outcomes could be explained in terms of family circumstances and parenting practice in the pre-school years.
This report presents an analysis of the factors associated with child development in Wales at the age of seven.
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