I am looking to calculate an OP Score (Overall Position). It is an outdated Queensland system of post-secondary-entrance rankings due to be phased out in 2018. None the less I am looking for specific information in regards to calculation an OP. The basics from the Queensland Curriculum and Assessment Authority (QCAA) is of little help in actually calculating a score.

If anyone is knowledgeable in this area it would be of great help if you could outline the basic of such calculations.

The information I have:

  • Subject Rankings (SA#, HA#, VHA#...)
  • School QCS Average (~173)
  • Position in each Subject (1st, 2nd, 3rd, 4th...)
  • OAI cutoffs (124 = OP1, <120 = OP2....)

From my interpretation of the resources at hand (QCAA):

  • A SAI is deductible from subject ranking and positioning
  • A scaled SAI is deductible from School QCS 173
  • An OAI is deductible from interschool scaling (Unknown process)

Any specifics on calculating an OP score will be of great help.


closed as off-topic by Henry Towsner, Jessica B, Brendan W. Sullivan, Mark Fantini, Daniel Hast Aug 24 '16 at 19:36

  • This question does not appear to be about teaching mathematics, within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

  • $\begingroup$ Previously asked at Academia Stack Exchange where it was closed around an hour before this question was posted here. $\endgroup$ – Joel Reyes Noche Aug 22 '16 at 13:33
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    $\begingroup$ It doesn't seem on topic, unless there's some link I'm not seeing. Clarification would be appreciated. $\endgroup$ – J W Aug 22 '16 at 15:56
  • $\begingroup$ I agree that the question doesn't seem on topic, and anyway, looking at the "Calculating OPs: The basic principles (PDF, 796.7 KB)" document linked from the question's link, it seems you would have to have the input data for the entire population that was being OPed, since, after all, the OP is supposed to reflect one's overall position within the given population of post-secondary students. It's relative, not absolute. [Disclaimer: I have never been to QLD and the only thing I know about the OP ranking is what I just read.] $\endgroup$ – shoover Aug 22 '16 at 20:36
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    $\begingroup$ I'm voting to close this question as off-topic because it does not appear to be a question about mathematics education. $\endgroup$ – Henry Towsner Aug 22 '16 at 22:24