Australian Bureau of Statistics
2062.0 - Census Data Enhancement Project: An Update, Oct 2010
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 15/10/2010
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3 WAVE 2 OF A 5% STATISTICAL LONGITUDINAL CENSUS DATASET
Each five-yearly Census provides a rich set of information about Australian people and households at a point in time. It provides information on topics such as family structure; education and qualifications; presence of a severe or profound disability; work, including hours worked, occupation and industry; income and housing; country of birth; year of arrival and indigenous status. It is able to provide a rich picture of social and economic conditions at a particular point in time, and how these conditions are changing over time and across population groups.
What the Statistical Longitudinal Census Dataset (SLCD) adds to this, is the ability to study patterns in how social and economic conditions change over time at the individual level, and provide insight into the pathways that tend to lead to particular outcomes, and how these pathways vary for different population groups. It also enables the study of likely consequences of certain socio-economic circumstances for different population groups, in terms of the likely outcomes as evidenced by the patterns in the longitudinal data. It can help develop strategies to achieve positive pathways, and avoid negative ones, and can help policy makers in assessing both the social and financial benefits of related intervention strategies.
As well as using the longitudinal Census data in its own right, the very large Census sample can be used to help inform on the quality of transition probabilities measured in more frequent smaller longitudinal studies, and, particularly for sub population groups may allow adjustment mechanisms to improve the socio-economic modelling that frequently underpins government policy making and research.
The 5% SLCD containing 2006 and 2011 Census data will be available for statistical analysis and research purposes from 2013. Standard ABS confidentiality methods will be applied and the data will be accessible through standard ABS secure data access arrangements. No information that is likely to enable identification of an individual or household will be released (See 'Confidentiality and Privacy' ).
Data involved in the Statistical Longitudinal Census Dataset
The creation of the 5% SLCD itself only involves the use of data from the Census of Population and Housing.
The 2006 SLCD dataset and the 2011 Census dataset will be brought together using a statistical method referred to as 'probabilistic record linkage'. This involves bringing together data from the two datasets without using names and addresses but by using a number of characteristics common to both datasets such as age, sex, geographic region and country of birth. All possible linkages based on these data items are evaluated and the records for which the linkage is most likely to be correct are brought together. For many individuals this linkage would be correct while for some others it will not. Some inaccuracy in the linkage will not generally affect statistical conclusions drawn from the linked data, although care does need to be taken in the interpretation of results.
This page last updated 2 November 2010
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