COMPARISON TO THE 2008 NATSISS
The ABS previously conducted the NATSISS in 2008 and 2002. A National Aboriginal and Torres Strait Islander Survey (NATSIS) was also conducted in 1994. Extensive information on the differences between the 2002 and 1994 surveys is provided in the National Aboriginal and Torres Strait Islander Social Survey: Expanded Confidentialised Unit Record File, Technical Paper, 2002 (cat. no. 4720.0). Information on the differences between the 2002 and 2008 surveys is provided in National Aboriginal and Torres Strait Islander Social Survey: Users' Guide, 2008 (cat. no. 4720.0).
Understanding the extent to which data from the 2014–15 and 2008 NATSISS can be compared is essential in interpreting apparent changes over time. While many key data items in the 2014–15 survey are the same or similar to those in the 2008 survey, there have been some additions, removals and revisions. There are also some differences in the sample design and coverage, survey methodology and content, definitions, and classifications, all of which may impact on comparability.
The Appendix 1: Data comparability with the 2008 NATSISS, released with the 2014–15 NATSISS summary publication, summarises the differences in survey design and data collection, the addition and removal of data items, and conceptual changes to data items.
Further details are provided, on a topic by topic basis, in the Survey content chapters included in this publication.