6602.0 - Microdata: Longitudinal Labour Force, Australia, 2008-10 Quality Declaration 
ARCHIVED ISSUE Released at 11:30 AM (CANBERRA TIME) 10/12/2012  First Issue
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Contents >> Weighting and Benchmarks >> Weight for the current month [WEIGHT]


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This data item provides the weight assigned to each respondent for a given month. This allows estimates to be created relating to the Australian population, rather than the numbers of people in the sample.

These weights are provided as continuous variables with up to 8 decimal places. The average weight is about 350, but it ranges from 15 to 1800.

These are the same weights used to produce the estimates in the main Labour Force, Australia publications (cat. no. 6202.0, 6291.0.55.001 and 6291.0.55.003). They are based on counts of the civilian population aged 15 years and over, as derived from the Estimated Resident Population (ERP) published in Australian Demographic Statistics (cat. no. 3101.0). The weights are calibrated based on the following benchmarking strata:
    • Sex [SEX],
    • Age group [AGECB],
    • State or territory of usual residence [STATURCE], and
    • Sub-state region of usual residence (Note: sub-state regional data is not provided on this CURF).
These weights have also been calculated using composite estimation across the prior 6 months in order to take advantage of the high correlation between overlapping samples across months in the Labour Force Survey (LFS). For more information on composite estimation, refer to Estimation Method and Information Paper: Forthcoming Changes to Labour Force Statistics, 2007 (cat. no. 6292.0).

The weights in this data item do not correspond to the weights used to produce estimates in the supplementary surveys - these are calculated using different benchmarks, estimation methods, and population exclusions.. When calculating estimates based on supplementary survey data items using the weights in this CURF, they may not match official estimates produced in the publications corresponding to those supplementary surveys.

For more information, refer to Population benchmarks in Survey Methodology and Weighting in File Structure.

For a respondent who is in the labour force survey for the full 8 months cycle, they will have a corresponding weight for each month. These weights are then useful for calculating cross-sectional estimates, as they correspond to each 'point in time' (see Survey month ID [ABSMID]).

For longitudinal analysis, there are a few different ways of calculating estimates based on the weights provided. These include:
    • Using a single representative weight for each person from the available weights provided. This could be the weight from the first, last, or middle month of a given span of analysis.
    • Using an average of all the monthly weights provided for each person.
    • Producing customised weights based on the original population counts provided (see Population count [POPCNTC]).







Related Information

Labour Force, Australia: Explanatory Notes - Population Benchmarks and Estimation Method (cat. no. 6202.0)
Labour Statistics: Concepts, Sources and Methods: 17. Overview of Survey Methods - 17.57, 17.64 to 17.66 (cat. no. 6102.0.55.001)
Labour Statistics: Concepts, Sources and Methods: 18. Methods Used in ABS Household Surveys - 18.42 to 18.43 (cat. no. 6102.0.55.001)
Labour Statistics: Concepts, Sources and Methods: 20. Labour Force Survey - 20.19 Estimation (cat. no. 6102.0.55.001)
Labour Force Survey Standard Products and Data Item Guide: Civilian Population (cat. no. 6103.0)
Information Paper: Forthcoming Changes to Labour Force Statistics, 2007 (cat. no. 6292.0)
Labour Force, Australia: Understanding Labour Force (cat. no. 6202)
Australian Demographic Statistics (cat. no. 3101.0)

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