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Using the Expanded CURF
Each employee record has a unique person identifier - ABSPID.
The May 2018 EEH Expanded CURF can be accessed via the DataLab and is available in SAS, SPSS and STATA formats. The Expanded CURF comprises the following files:
Data item file
Use of weights
The survey was conducted on a sample of employees from a sample of employers in Australia, and as such users need to take this into account when deriving estimates from the Expanded CURF. Each employee record contains a weight (FINPRSWT) and this weight indicates how many employees in the survey scope population are represented by this employee. Where estimates are derived from the Expanded CURF, it is essential they are calculated using the weights.
An employee's chance of selection in the survey varied considerably, depending on their employer's state, sector, industry and size. If an employee's survey weight is ignored, then no account will be taken of the employee's chance of selection, and the resulting estimates may be biased.
A number of the weights in the Expanded CURF have been slightly modified from the original survey weights for confidentiality reasons. This reweighting process has not resulted in significant changes to the estimates and the statistical validity of the Expanded CURF is not affected.
Weekly earnings data items have been perturbed and are expressed as continuous data items (in whole dollars only) on the Expanded CURF. Perturbation is a process of slightly altering the reported values to prevent identification of respondents. The distribution of values is not changed significantly through perturbation and the statistical validity of aggregate data is not affected.
Hours paid for
Hours paid for data were requested for all employees. However, hours paid for could not be provided for Managerial employees where there was no relationship between earnings and hours. As a result, data for hours paid for have only been produced for Managerial employees with a link between earnings and hours.
Reconciliation of Expanded CURF with previously published data
Steps to confidentialise the data made available on the Expanded CURF are taken in such a way as to maximise the content of the file while maintaining the confidentiality of respondents. The steps taken to preserve confidentiality include:
As a result, it may not be possible to exactly reconcile all statistics produced from the Expanded CURF with previously published statistics. However, these differences are not significant and should not diminish the value of the Expanded CURF in analysis.
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