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Open access data sets


Governments in Australia are committed to the principle of open access to public sector information, which is to be made accessible through the web (http://webguide.gov.au/web-2-0/publishing-public-sector-information/ )

In December 2012, the Tasmanian Qualifications Authority discussed the importance of providing open access to the information it holds.

The Authority noted that open access means making data public in a way that complies with the following principles

  1. Complete

    All public data is made available. Public data is data that is not subject to valid privacy, security or privilege limitations.
  2. Primary

    Data is as collected at the source, with the highest possible level of granularity, not in aggregate or modified forms.
  3. Timely

    Data is made available as quickly as necessary to preserve the value of the data.
  4. Accessible

    Data is available to the widest range of users for the widest range of purposes.
  5. Machine processable

    Data is reasonably structured to allow automated processing.
  6. Non-discriminatory

    Data is available to anyone, with no requirement of registration.
  7. Non-proprietary

    Data is available in a format over which no entity has exclusive control.
  8. License-free

    Data is not subject to any copyright, patent, trademark or trade secret regulation. Reasonable privacy, security and privilege restrictions may be allowed


We are progressively ensuring that data that is released is available in machine-readable form.

The Authority approved the exploration in 2013 of feasible methods for ensuring privacy of individuals' confidential information in de-identified qualification data sets.

On this page you can find four de-identified data sets of the type used to derive the scaled subject score ranges used in the calculation of ATARs.

scaling data 2013 de-identified data set for 2013
(Updated Oct 6, 2014)
scaling data 2012 de-identified data set for 2012
(Updated Oct 6, 2014)
Scaling Data 2011 de-identified data set for 2011
(Updated Oct 6, 2014)
Scaling Data 2010 de-identified data set for 2010
(Updated Oct 6, 2014)


Note that each data set is a set of lines, one per student, with entries corresponding to the result each student got in each subject: one of , 0, 1, 2, 3, 4 according as the student did not do the subject (entry is ) or got NN or PA (entry is 0) , SA (entry is 1), CA (entry is 2), HA (entry is 3), EA (entry is 4).

Only courses where there were at least 30 results are included.

To protect students' privacy, we have made some changes to the raw data. These changes include making small changes at random to the results of students who took a unique combination of subjects. This means that it is not possible to use the data set to confidently identify the results of a student who took one particular, unique, combination of TASC courses.

The effect of these changes is to protect individual privacy while providing a data set that will when analysed using the processes described at http://www.tasc.tas.gov.au/0477 produce scaled score ranges that are the same as or very close to the values we published for that year. Note that the slight differences reflect
  • the omission of subjects with very small enrolments
  • the changes made to protect privacy
  • differences in the data set as a result of corrections and additions to results made after January each year.


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