Allied Health Industries Survey, (Stage 2) Financial Year 1997/1998
- Overview
- Quality Framework
- A. General Information
- B. User Requirements, Survey Objectives and Budget
- C. Alternative Sources of Data
- D. Data Outputs
- E. Questionnaire Design and Data Collection
- F. Respondent Load
- G. Population / Frame *** You are here ***
- G1 Target population
- G2 Frame
- G3 Type of unit on frame
- G4 Number of units on frame
- G5 About the units on frame
- G6 Deficiences in frame
- G7 Frame updates
- H. Sample Design
- I. Estimation and Analysis
G. Population / Frame
What is the target population for the survey? (G1)
Note. The "target population", or "scope" of the survey, is the population about which information is sought. This section should include any geographical, industrial and size constraints.
- Dental Services businesses, Optical services businesses and Optical Dispensers, Physiotherapy service businesses, Chiropractic service businesses, Osteopathic service businesses and Audiology and Audiometry Services businesses.
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How is the frame for the survey to be obtained? (G2)
Note. The" frame", or "sampling frame", is the list of businesses from which the sample is selected.
- The frame source was lists of practitioners from Medicare (Optometrists) and Medibank (Dentists, Physiotherapists, Chiropractors, Osteopaths and Optical Dispensers) for stage 1. A sample of practitioners was then selected and asked to identify businesses which formed the frame for stage 2.
The Audiology/Audiometry frame was constructed by merging lists provided by the Office of Hearing Services, the Australian College of Audiologists, the Australian Society of Audiologists and the Hearing Aide Audiometrists Society of Australia.
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What is the type of unit on the frame to be used for the survey? (G3)
Note. Examples of type of unit include: location, establishment, management unit, enterprise, and employer.
- The type of unit to be used for the survey is the management unit.
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How many units are there on the frame? (G4)
Note. This refers to the number of units, not the number of types of unit.
| Form Title, Identifier, Reference Period | Number of Frame Units (Stage 1) | Expected number of Frame Units Stage 2) |
Dental Services | 11,140 (Sampled - 1688) | 2026 |
Optometry | 2,737 (Sampled - 847) | 1016 |
Physiotherapy Services | 7,926 (Sampled - 966) | 1159 |
Chiropractic Services, | 2,934 (Sampled - 656) | 748 |
Audiology/Audiometry |  | 200 |
Totals | 24,737 (Sampled - 4024) | 5149 |
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What information on the frame about these units will be used for the survey? (G5)
Note. Examples of information which might be used include:
employment size, industry classification, whether the unit is in private or public sector, etc.
- Information on the frame is only used in the case of General Practitioner Dentists and Oral Surgeons where a measure of activity (number of medibank claims) was used to stratify the sample.
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In what ways does the coverage provided by the frame differ from the target population? (G6)
Note. Should include an estimate of the proportion of units expected to be defunct (ie. no longer in business), and an estimate of the proportion of units expected to be out of scope.
- A 5% cancellation rate was expected, based on the 1994/95 Medical survey which used the same source. The deficiencies in the Medibank frame were that the address information was out of date and there wasn't any systematic deathing procedure for the frame. Hence cancellation rates were higher than expected (ie. between 10 and 30 percent). This lead to supplementation of the sample.
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How will the frame be updated for future survey cycles? (G7)
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