Australian Bureau of Statistics
8153.0 - Internet Activity, Australia, June 2011 Quality Declaration
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 28/09/2011
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9 This release relates to information as at 30 June 2011, except for volume of data downloaded, which is for the three months ended 30 June 2011.
10 The response rate for the June 2011 IAS was 100%.
11 Where data were missing or required clarification, respondents were contacted in the first instance. When necessary, missing data were imputed based on historical data collected.
RELIABILITY OF DATA
12 As the IAS does not have a sample component, the data are not subject to sampling variability. However, other inaccuracies, collectively referred to as non-sampling errors, may affect the data. These non-sampling errors may arise from a number of sources, including:
13 Every effort has been made to reduce non-sampling error to a minimum by careful design and testing of questionnaires, efficient operating procedures and systems, appropriate methodology, and contact with providers to resolve anomalies. Errors in previous cycles' data are only revised where they have a significant impact on the data released.
14 The volume of data downloaded presented should only be considered as an indicative measure of internet activity during the reference period and therefore should be used with caution.
15 Some ISPs provide proportions in lieu of actual state subscriber numbers. These data therefore has an element of estimation and should be used with caution.
16 Occasionally reporting errors are identified from previous cycles of the IAS and where possible these are revised if they have a significant impact on the data. However in some circumstances, due to a change in the computer system used to process the IAS, the ABS is unable to revise this data. Readers are advised to use these figures with caution.
17 A glossary of the terms used in this release can be found under the @ a Glance pages for Innovation, Science and Technology.
18 The ABS releases draw extensively on information provided freely by individuals, businesses, governments and other organisations. Their continued cooperation is very much appreciated. Without it, the wide range of statistics published by the ABS would not be available. Information received by the ABS is treated in strict confidence as required by the Census and Statistics Act 1905.
19 In particular, the ABS acknowledges the assistance of the TIO in providing regular lists of registered ISPs.
20 Other ABS releases on information technology and telecommunications in Australia are:
Household Use of Information Technology, Australia, cat. no. 8146.0 (2010-11 available 15 December 2011)
Patterns of Internet Access in Australia, 2006, cat. no. 8146.0.55.001
Summary of IT Use and Innovation in Australian Businesses, cat. no. 8166.0
Selected Characteristics of Australian Business, cat. no. 8167.0
Information and Communication Technology, Australia, cat. no. 8126.0
21 For further details on the Internet Activity Survey please see Directory of Statistical Sources by Topic.
MORE INFORMATION ON ABS INFORMATION TECHNOLOGY STATISTICS
22 Information about ABS activities in the field of information technology statistics is available from the Innovation, Science and Technology @ a Glance pages in the ABS website <www.abs.gov.au>.
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This page last updated 29 March 2012