ABOUT THE MICRODATA
The 2006 TUS CURFs contain unit records relating to almost all survey respondents.
The data are released under the Census and Statistics Act 1905, which has provision for the release of data in the form of unit records where the information is not likely to enable the identification of a particular person or organisation. Accordingly, there are no names or addresses of survey respondents on the CURFs and other steps have been taken to protect the confidentiality of respondents. These include:
- removing persons from large households on the file to reduce them to a maximum household size of 8 persons on the expanded CURF and 6 persons on the basic CURF;
- reducing the level of detail for many data items (e.g. geography, industry and occupation items);
- perturbing income items or presenting deciles only;
- ranging, collapsing or top-coding some variables (e.g. age of person); and
- changing demographic information for a small number of records.
As a consequence, aggregated data obtained from the CURFs are slightly different to that published in How Australians Use Their Time
, 2006 (Cat. no. 4153.0). See the section 'Reconciliation of the data' in this chapter for more information.
Steps taken to confidentialise the datasets made available on the CURFs are undertaken in such a way as to ensure the integrity of the datasets and optimise the content, while maintaining the confidentiality of respondents. Intending purchasers should ensure that the data they require, at the level of detail they require, are available on the CURFs. Data collected in the survey but not contained on the CURFs may be available in tabulated form on request. For a complete list of the data items and categories on the basic and expanded CURFs see Appendix 2.