Age culture, school-entry cutoff, and the choices of birth month and school-entry timing in South Korea

This study explores how the distinctive Korean age reckoning, the Confucian age culture, and the school-entry-cutoff date affect the decisions of parents on both birth and school-entry timing for their children in Korea. There is a traditional method of age calculation in Korea that all people get one year older on January 1. Korea also has a distinctive age culture influenced by Confucianism. I find a substantial amount of birth and school-entry timing selections around the Korean age-cutoff date, January 1. The estimation results show that children born in January and February delayed school entry by 18.2–21.2 percentage points more than those born in November and December and 24% of births moved from one week before January 1 to one week after when the school-entry cutoff was March 1. After the school-entry cutoff has changed to January 1, children barely delay school enrollment, while more births are moved from December to January: 42% of births are shifted within the 7-day window. These behaviors are made by two motives: (1) parents want their children to have the same Korean age with their classmates because of the Confucian age culture; (2) they also want their children to be relatively older to have academic advantages.

Exploring the Associations between Delayed School Entry and Achievement in Primary and Secondary School

This research investigated whether delayed school entry was associated with higher achievement in national tests of reading and numeracy in grades 3, 5, 7 and 9 (n=2823). Delayed entry was related to advantages in reading (0.14SD) and numeracy (0.08SD) at grade 3, although little variance was explained (1-2%). This slight advantage persisted for both domains in grades 5 and 7, albeit with smaller effects. In grade 9 there was no association between delayed entry and either reading or numeracy. Exploratory analyses with subsamples in each grade (n=424-667) revealed no associations between delayed entry and achievement after controlling for inattention and hyperactivity, and negative associations between inattention and achievement in all grades in both domains (-0.33, -0.49SD).

Social and geographical inequalities in school starting age in Australia: a population data linkage study

ABSTRACT ObjectiveIn Australia’s most populous state, New South Wales (NSW), children must start school in the year they turn five, unless they are born between February-July, in which case they can delay starting until the year they turn six. Consequently, children start their first year of school aged 4.5-6 years. This may translate into a wide range of developmental ability in the classroom in the first year of school and may impact on the magnitude of inequalities in longer-term educational outcomes. To inform how this policy currently translates into the demographic composition of NSW classrooms, this study aims to identify child, family, and area-level characteristics associated with the practice of delaying school entry. ApproachThe ‘Seeding Success’ study cohort (N=154,936) includes an almost complete population of children who started school in NSW in 2009 or 2012, and were born in NSW, identified by linking the Australian Early Development Census (AEDC) data to perinatal and birth registry data. Restricting this analysis to the 88,716 (57%) children born in February-July, we defined ‘delayed school entry’ as children who were eligible to start school the previous year (i.e. 2008 or 2011), but started in the AEDC data collection years (i.e. 2009 or 2012). Multilevel regression models were used to investigate child, family and area-level characteristics associated with delayed school entry. ResultsThe prevalence of delayed school entry was 46% in the 2009 AEDC cohort and 47% in the 2012 AEDC cohort. Boys and children born closer to July were more likely to be delayed, as were children of older mothers. Prevalence of delay was similar in Aboriginal and non-Aboriginal children, however, children of mothers born overseas were less likely to delay school entry compared to Australian-born mothers. Delaying was less common in major cities compared to remote and regional areas, and less common in socio-economically disadvantaged areas. ConclusionChildren born in February-July who live in socio-economically disadvantaged urban areas are more likely to start school up to a year earlier than their peers, with poorly understood educational consequences. The current policy on school starting age results in an 18-month age range in classrooms, which may be challenging for teachers and confusing for parents who need to make a decision regarding their child’s ‘school readiness’. It is likely that access and affordability of childcare during the study period impacted on parent’s decisions about when to send their children to school.