Australian Bureau of Statistics
1504.0 - Methodological News, Mar 2008
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 31/03/2008
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The Use of Trials to Assess Changes in Operational Procedures in ABS Business Surveys
Trial B was run in the September quarter 2007. A sample of 1000 providers was chosen and compared with providers not in the trial that were of the same scope.
Ideally, all providers would be contacted during the window of opportunity, however, resources do not permit this to happen. The main recommendations from the trial were therefore to prioritise providers in IFU such that new units, previous non-respondents or late respondents are targeted in the first five days; and to use priorities to ensure that all providers are called before the second reminder rather than some getting called multiple times and others not at all. More work is needed to advise exactly how to proceed with this prioritisation and it is expected that it can also be applied to other collections.
The trial for EAS involved a sample of 3000 with the following changes in timing:
The EAS trial was run for the 06/07 cycle. Only preliminary results are available at the moment, however the results are generally similar to those for QEWS. For example, form receival rate for those in the trial was slightly higher (90% compared to 86%), and trial providers had higher average outbound calls (1.8 compared to 1.3). In the case of EAS, the main recommendation from the trial was to move the timing of the entire EAS such that the optimal time to contact EAS providers does not overlap with any other surveys.
The overall outcome from these trials is that trial A is being implemented as general practice. The other two trials require further work to see how they will work in practice.
For further information, please contact Louise Gates on (02) 6252 6540.
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This page last updated 12 June 2008