I think you may be talking about the RET (Regional Entry Test) where people living in "disadvantaged zones", including in tafes or high schools or home with the post codes listed on
http://www.uws.edu.au/about/adminorg/academic/oar/info/admissions/regionalentrytests#Eligible
can apply:
Students will be given a competitive rank based on their performance in the test that can work like a UAI in allocating offers to UWS. For this rank to be used students must:
-achieve a UAI of no more than 10 points below the 2003
published cut-off for the UWS course to which they wish to be considered. *
-list a UWS course/s as one of their preferences to UAC.
-Once students have satisfied the criteria, their RET score if higher than their UAI will be used during the 2004 UAC offer rounds.
*Note: 10 points are NOT added to either the UAI result or the RET score
See the web site for eligibility and more details
From what ive heard its sort of like an IQ test