School starting age and child development in a state-wide, population-level cohort of children in their first year of school in New South Wales, Australia

Abstract

In Australia's most populous state, New South Wales (NSW), children born between January and July have the choice to start school in the year they turn five, or delay entry until the year they turn six. We used linked administrative data for children who started school in NSW in 2009 or 2012 (N = 162,878) to identify child, family and area characteristics associated with delayed entry, and to explore the relationship between school starting age and five domains of child development, measured using the Australian Early Development Census (AEDC) in the first year of school. Among both the 2009 and 2012 cohorts, 26% of children delayed starting school until the year they turned six. Area-level ..