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SAMPLE DESIGN
This sample size is expected to be sufficient to provide estimates of the net overcount or net undercount rate with the following standard errors:
* NT and ACT had populations below 500,000 as at December 2014. GENERAL POPULATION SAMPLE For all general population areas other than Discrete Communities, private dwellings are selected through a stratified, multistage cluster design from the private dwelling framework of the ABS Population Survey Master Sample. The geographic area used for selection is comprised of mesh blocks from the Australian Statistical Geographical Standard (ASGS). Areas are grouped into strata based on locality, population density, remoteness, projected population growth and socio-economic characteristics. Each private dwelling within a stratum has the same probability of selection. The 2011 PES used larger sampling fraction for areas with larger proportions of households with Aboriginal and Torres Strait Islander persons in residence, based on data from the 2006 Census. The aim of this was to improve estimates of Indigenous overcount and undercount. However, a review of the 2011 PES sample design showed that most of the improvement of Aboriginal and Torres Strait Islander estimates was achieved by increases to the overall sample size. DISCRETE COMMUNITIES SAMPLE For the purposes of sampling, Discrete Communities are grouped into 'sets' comprising main communities and their associated outstations. The selection of main communities is undertaken with probability proportional to the size of the set. The aim is to select a representative sample while also considering cost constraints, reasonable interviewer workloads and expected sample size. For communities selected in the sample, selection of dwellings within the community is performed using systematic equal probability sampling. A selection of outstations associated with each selected main community is also included in the sample. Each outstation has an equal chance of selection and, once selected, all dwellings within the outstation are enumerated. Occasionally, an outstation is not enumerated if it is difficult to access from the main community, resulting in a small loss of coverage. The 2016 PES has selected a sample of Discrete Communities similar in size to that of 2011 PES in Qld, SA, WA and NT, with the addition of a small sample in NSW. For each state, the sampling fraction for Discrete Communities is 2 to 3 times the sampling fraction for the rest of the state. Document Selection These documents will be presented in a new window.
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