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This document was added or updated on 02/10/2015. FACTORS INFLUENCING EARLY CHILDHOOD DEVELOPMENT IN TASMANIA
While the AEDC provides information on children in their first year of formal schooling, the NECECC was used in this study to provide data on children enrolled in preschool programs (commonly referred to as 'Kindergarten' in Tasmania) in the year prior to formal schooling. For the purpose of the NECECC, a preschool program is defined as a structured, play based learning program, delivered by a degree qualified teacher, aimed primarily at children in the year or two before they commence full-time schooling.7 Participation in preschool is not compulsory. The ABS Census of Population and Housing is conducted every five years and aims to accurately measure the number and key characteristics of people who are in Australia on Census Night, and of the dwellings in which they live. Due to ABS Census data being collected in August 2011 and AEDC data being collected between May and July 2012, there is a possibility that some children's family and household characteristics may have changed between the time of the ABS Census and the AEDC. The data used in this article is based on linked AEDC and ABS Census records. The NECECC data was included in the dataset where a corresponding ABS Census record was able to be linked. Records were linked across these datasets by finding exact matches on combinations of common variables, such as date of birth, sex, and small area geography codes. Name and address information were not available for linkage. The data has been weighted to ensure it is representative of the full Tasmanian AEDC population. There may be differences between figures in this article and those in publications that use the individual datasets or other data sources. For more detailed information about data sources, definitions and linkage methodologies, see the Explanatory Notes tab. PRESCHOOL PARTICIPATION Effect of time at preschool varies Children enrolled in preschool for 20 hours or more per week in the year before school (2011) had the lowest proportion of developmental vulnerability on two or more domains (4%), followed by those enrolled for 11 to 14 hours (8%). Children enrolled in preschool for between 1 and 10 hours per week had the highest proportion of developmental vulnerability on two or more domains (14%). PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE IN EACH DOMAIN, BY HOURS ENROLLED IN PRESCHOOL PER WEEK Source: Integrated Tasmanian Education and ABS Census Dataset Looking at each domain individually, preschool participation appears to have different effects. The logistic regression model results show that while children enrolled for 20 hours or more per week were significantly more likely than those enrolled for 11 to 14 hours to be developmentally vulnerable on the Physical health and wellbeing domain, they were significantly less likely to be vulnerable in the Language and cognition domain. In fact, none of the 234 children on the integrated dataset who were enrolled in preschool for 20 hours or more per week were classified as developmentally vulnerable on the Language and cognition domain. Children enrolled for 1 to 10 hours of preschool per week were around twice as likely to be developmentally vulnerable in the Social competence and Emotional maturity domains than children enrolled for 11 to 14 hours. Children enrolled for 15 to 19 hours of preschool per week were significantly more likely to be developmentally vulnerable than those children enrolled for 11 to 14 hours in the Physical health and wellbeing, Social competence and Language and cognition domains. Parents who don't work use more preschool Children from couple families where all parents were not in the labour force had the largest proportion enrolled for 15 to 19 hours of preschool per week (53%). In contrast, children living in couple families with both parents employed or living with an employed lone parent ('all employed', regardless of full-time or part-time status) had the largest proportion enrolled in preschool for 11 to 14 hours per week (42%). PARENTAL LABOUR FORCE STATUS BY HOURS ENROLLED IN PRESCHOOL PER WEEK (a) Couple families where only one parent was employed, either full-time or part-time. Source: Integrated Tasmanian Education and ABS Census Dataset Tasmania commenced implementing the Universal Access to Early Childhood Education (known as '15 hours of kindergarten') in schools in 2010, with all schools offering 15 hours of preschool by 2014. By 2012, 90% of children were enrolled in a kindergarten program offered for 15 hours or more per week.8 PERSONAL CHARACTERISTICS AND CIRCUMSTANCES Regularity of reading to children affects their development The AEDC collects information on a number of general characteristics and behaviours which do not directly contribute to a child being classified as developmentally vulnerable. The integrated dataset allows analysis of the extent to which responses to individual AEDC questions relate to child development when holding factors obtained from the ABS Census and the NECECC constant. One such question asks teachers to assess the regularity with which a child is read to, or encouraged in their reading, at home. This may also take into account the child talking about the books they have read at home and going to the library regularly, and parent(s)/caregiver(s) reporting to teachers that they hear their child reading regularly at home. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE IN EACH DOMAIN, BY WHETHER CHILD IS REGULARLY READ TO, OR ENCOURAGED IN THEIR READING, AT HOME Source: Integrated Tasmanian Education and ABS Census Dataset The regression modelling results show that, when holding other factors constant, how regularly a child was read to had a strong and consistently significant effect on developmental vulnerability. Across the domains, children who were assessed by teachers as not being read to regularly at home were around three times more likely to be developmentally vulnerable compared with children who were read to somewhat regularly at home. In addition, children who were assessed as being read to very regularly were significantly less likely to be developmentally vulnerable than those who were somewhat regularly read to, for each of the domains. Parental engagement has a strong relationship with child development The AEDC collects information on parental engagement with a child's school in support of their child's learning. This may include the parent(s)/caregiver(s) speaking to the teacher about their child’s learning or concerns they may have about their child, and attending parent/teacher information nights or interviews at the school. The regression analysis shows that parental engagement with a child's school had a strong and consistently significant relationship with a child's developmental vulnerability, with higher levels of parental engagement related to better outcomes. Children whose parents were very engaged with the school were 75% to 85% less likely to be developmentally vulnerable across the domains than those whose parents were only somewhat engaged. In contrast, children whose parents were not engaged with the school were two to three times more likely to be developmentally vulnerable than those whose parents were somewhat engaged. Boys more likely to be developmentally vulnerable Children with highly educated parents less likely to be developmentally vulnerable PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE IN EACH DOMAIN, BY HIGHEST PARENTAL EDUCATION (a) Includes Certificate I & II. Source: Integrated Tasmanian Education and ABS Census Dataset Children of employed parents less likely to be developmentally vulnerable Children living in couple families with both parents employed or living with an employed lone parent (referred to as 'all employed', regardless of full-time or part-time status) had the lowest proportion of developmental vulnerability across all domains. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE IN EACH DOMAIN, BY PARENTAL EMPLOYMENT STATUS (a) Couple families where only one parent was employed, either full-time or part-time. Source: Integrated Tasmanian Education and ABS Census Dataset However, the regression modelling results show that the effect of parental employment status was only significant on the Language and cognition domain, where children in couple families with one employed parent were more likely to be vulnerable than children with all parents employed, and the Communication and general knowledge domain, where children in couple families with one employed parent or in families with all parents not in the labour force were more likely to be vulnerable than children with all parents employed. Vulnerability varies across parental occupations While children of employed parents were less likely to be classified as developmentally vulnerable, their rates of vulnerability differed considerably across different parental occupations. When looking at the top 30 most common occupations for fathers of children in Tasmania, the lowest rates of developmental vulnerability on two or more domains were for children of Construction, Distribution and Production Managers or Defence Force Members, Fire Fighters and Police (both 2%), while the highest rate of developmental vulnerability on two or more domains was for children of Farm, Forestry and Garden Workers (22%). When considering the top 30 most common occupations for mothers, there were no children classified as developmentally vulnerable on two or more domains if their mother had one of the following occupations: Human Resource and Training Professionals, Information and Organisation Professionals, Natural and Physical Science Professionals, Receptionists, and Tertiary Education Teachers. The highest rate of developmental vulnerability on two or more domains was for children of Personal Carers and Assistants (17%). It should be noted that parental occupation was not included in the regression model and it has therefore not been determined if the relationship between parental occupation and child development is significant. Family size plays a role in child development Across most domains, children living in families with two or three children had the lowest proportions of developmental vulnerability, while children living in families with one child or five or more children had the highest proportions of developmental vulnerability. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE IN EACH DOMAIN, BY NUMBER OF CHILDREN IN FAMILY Source: Integrated Tasmanian Education and ABS Census Dataset After controlling for other factors, such as income and family type, having more siblings generally had a significant positive effect on developmental vulnerability in several domains. These effects were most consistent in the Social competence and Emotional maturity domains, where children living in families with three or more children were significantly less likely to be developmentally vulnerable than those from families with two children. Birthplace of parents related to physical health and wellbeing The regression modelling results show that children with both parents born overseas were 65% less likely to be developmentally vulnerable on the Physical health and wellbeing domain than those with both parents born in Australia. Parental birthplace did not have a significant impact on children's developmental vulnerability for any of the other domains. Developmental vulnerability differs across family types Children of married couples had a lower proportion of developmental vulnerability on two or more domains (6%) than those of de facto couples (13%) or lone parents (20%), however this difference was more prevalent for girls. For example, the rate of developmental vulnerability on two or more domains for girls living in married couple families was over five times lower than for those living in one parent families, whereas the rate for boys was three times lower. Interestingly, when holding other factors such as sex constant, family type did not have a significant impact on developmental vulnerability for any of the five domains. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE ON TWO OR MORE DOMAINS, BY FAMILY TYPE AND CHILD'S SEX Source: Integrated Tasmanian Education and ABS Census Dataset Mother's age has little impact on child's developmental vulnerability Generally, across all domains, children of older mothers had lower rates of developmental vulnerability than children of younger mothers. However, the regression results show that when holding other factors constant, mother's age at the time of their child's birth did not have a significant effect on developmental vulnerability for any of the five domains. HOUSEHOLD CHARACTERISTICS Lower rates of developmental vulnerability for children in higher income families In general, higher levels of household income were associated with lower proportions of children being developmentally vulnerable on two or more domains. Children living in a household with an income of $2,500 or more per week had a rate of developmental vulnerability on two or more domains approximately three times lower than children living in a household with a weekly income of less than $600. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE ON TWO OR MORE DOMAINS, BY WEEKLY HOUSEHOLD INCOME (a) Includes negative or nil income. Source: Integrated Tasmanian Education and ABS Census Dataset However, the regression analysis shows that the impact of household income is generally not significant when holding other factors constant. The only significant results were in the Emotional maturity domain, where children living in households with a weekly income between $1,500 and $2,499 were more likely to be developmentally vulnerable than those in a household with an income of $1,000 to $1,499 per week. Vulnerability varies within socioeconomic areas Whilst developmental vulnerability may be analysed based on the socioeconomic status of the area in which the child lives (as measured by Socio-Economic Indexes for Areas, or SEIFA), a benefit of the integrated dataset is that socioeconomic measures can be explored at a household or family level within each SEIFA quintile. For example, in the most disadvantaged areas (Quintile 1) the proportion of children who were developmentally vulnerable on two or more domains varied from 23% of children in households with an income of less than $1,000 per week, to 12% of children in households with an income of between $1,000 and $1,999 a week. Likewise, in the most advantaged areas of Tasmania (Quintile 5) the proportion of children developmentally vulnerable on two or more domains varied from 9% of children in households with an income of less than $1,000 per week, to just 3% of children in households with a weekly income of $2,000 or more. The interaction between SEIFA and household income was not included in the regression model. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE ON TWO OR MORE DOMAINS, BY SEIFA (a) INDEX OF ADVANTAGE/DISADVANTAGE AND WEEKLY HOUSEHOLD INCOME
Source: Integrated Tasmanian Education and ABS Census Dataset Parental employment and education were beneficial in all socioeconomic areas Across all SEIFA quintiles, having at least one parent employed was related to lower rates of developmental vulnerability. Children living in the most advantaged areas (Quintile 5) had the lowest rates of vulnerability even when no parents were employed, while those children living in the most disadvantaged areas (Quintile 1) had the highest rates of vulnerability on two or more domains even with all parents employed. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE ON TWO OR MORE DOMAINS, BY SEIFA (a) AND PARENTAL LABOUR FORCE STATUS (a) Based on the 2011 Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-economic Advantage and Disadvantage (IRSAD). (b) Includes 'All unemployed' and 'All not in labour force'. (c) Couple families where only one parent was employed, either full-time or part-time. Source: Integrated Tasmanian Education and ABS Census Dataset Children living with a parent who had a Bachelor Degree or higher generally had lower rates of developmental vulnerability, regardless of which SEIFA quintile they lived in. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE ON TWO OR MORE DOMAINS, BY SEIFA (a) AND PARENTAL EDUCATION (a) Based on the 2011 Socio-Economic Indexes for Areas (SEIFA) Index of Relative Socio-economic Advantage and Disadvantage (IRSAD). (b) Includes Certificate I & II. Source: Integrated Tasmanian Education and ABS Census Dataset Children in Outer Regional Tasmania less vulnerable Throughout much of Australia, outcomes for people living in Outer Regional, Remote or Very Remote areas are poorer than for those living in Major Cities or Inner Regional areas.13 However, this was not the case in Tasmania, where it appears that children living in Outer Regional areas had a lower proportion of developmental vulnerability across some domains. Reasons for this may include the relatively small geographic area of Tasmania, which means that Outer Regional areas are not so far from Inner Regional areas, resulting in more of a community environment. There is also evidence of "tree changers",14 which may mean the characteristics of people living in the Outer Regional areas of Tasmania are different to those living in the Outer Regional areas of other states or territories. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE ON EACH DOMAIN, BY REMOTENESS Source: Integrated Tasmanian Education and ABS Census Dataset The regression analysis shows that children living in Outer Regional areas of Tasmania were significantly less likely than those living in Inner Regional areas to be developmentally vulnerable on the Physical health and wellbeing, Social competence and Emotional maturity domains. The apparent differences between children living in Remote or Very Remote Tasmania and those living in Inner Regional areas were found to be not significant when other variables were held constant. Overall in 2012, 10% of children in Tasmania were developmentally vulnerable on two or more domains. However, children in some areas of Tasmania fared better than others, with the Statistical Area 3 of 'Meander Valley - West Tamar' having the lowest proportion of children developmentally vulnerable on two or more domains (4%). At the other end of the spectrum, 23% of children living in the Statistical Area 3 of 'Brighton' were developmentally vulnerable on two or more domains. PROPORTION OF CHILDREN DEVELOPMENTALLY VULNERABLE ON TWO OR MORE DOMAINS, BY STATISTICAL AREA 3 Geocentric Datum of Australia, 1994 Source: Integrated Tasmanian Education and ABS Census Dataset
CONCLUSION Using Tasmanian administrative data from the Australian Early Development Census (AEDC) and National Early Childhood Education and Care Collection (NECECC), in conjunction with ABS Census data, this article provides evidence of the socioeconomic and contextual factors that influence developmental vulnerability. When other factors were held constant, the regularity with which a child was read to (or encouraged in their reading) at home, parental engagement with a child's school, and a child's sex all had strong and consistent relationships with their developmental vulnerability across all AEDC domains. Other factors which had a significant effect on a child's developmental vulnerability in their first year of schooling across some domains included the number of hours a child was enrolled in preschool in the previous year, parental education, the number of siblings a child had, the age at which a child started school, child type, and the socioeconomic status and remoteness of the area in which they lived. Factors which only had a slight effect were parental labour force status, household income, parental birthplace, and Indigenous status. Factors which did not have a significant effect on any domain were family type, mother's age at the time of the child's birth, tenure type, need for extra bedrooms, whether the child was cared for by a relative in the year before starting school, and type of internet access. LOOKING AHEAD There is extensive scope to enhance the evidence base for social, economic and educational policy by maximising the use of existing administrative data in conjunction with collections such as the Australian Early Development Census and the ABS Census of Population and Housing. Further analysis of the results presented in this article could be beneficial in better understanding why certain factors appear to influence developmental vulnerability, at times in contradictory ways. Expanding this analysis to cover national data rather than a specific state would also be beneficial to determine if factors associated with developmental vulnerability vary across Australia, as well as to improve the ability to report on small population groups. Recent data integration work performed by the ABS has linked data on student literacy and numeracy achievement as measured in NAPLAN testing to the Census of Population and Housing.16 Future research could look at integrating the AEDC and Census data with data from NAPLAN to provide information on the relationship between children's early development and later achievement, and how these are moderated by various parental and socioeconomic contextual factors. Particular areas of interest might include how early childhood development and educational outcomes can be optimised for children from disadvantaged backgrounds. ENDNOTES
6. AEDC, FAQ for researchers, Accessed 17 August 2015 7. ABS, Preschool Education, Australia, 2014 (see Background information), cat. no. 4240.0, Accessed 7 September 2015 8. ABS, Preschool Education, Australia, 2012 (see Table 23 in Download tab), cat. no. 4240.0, Accessed 7 September 2015 9. Australian Government, A Snapshot of Early Childhood Development in Australia 2012 - AEDI National Report Re-issue November 2013, p. 3, Accessed 18 August 2015 10. See end note 9. 11. Tasmania Department of Education, Admission Guidelines for Kindergarten and Preparatory (Prep), p.2, Accessed 18 August 2015 12. 'BetterStart' Child Health and Development Research Group 2014, Five by Five: A Supporting Systems Framework for Child Health and Development, p. 6, Accessed 18 August 2015 13. Miranti, R, Daly, A & Tanton, R 2015, 'An area-based measure of risk of social exclusion for Australian school-age children', Australasian Journal of Regional Studies, pp. 26-49 14. Salt, B, Tree-changers boosting inland Tasmania, Accessed 18 August 2015 15. Productivity Commission, Report on Government Services, 2011, p. 3.28, Accessed 18 August 2015 16. ABS 2014, Educational outcomes, experimental estimates, Queensland, 2011 and Educational outcomes, experimental estimates, Tasmania, 2006-2013, Accessed 18 August 2015 Document Selection These documents will be presented in a new window.
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