In the total PISA sample, the weighted percentage of Indigenous students was 2.4 percent. This figure consisted of 192 students who identified themselves as being of Aboriginal or Torres Strait Islander descent in the main sample. An additional 301 Indigenous students, not selected for the main sample, accepted the offer to participate in PISA. This report is based on the results of this combined group of 493 Indigenous students. The distribution of the sample is representative of the Indigenous population in Australia.
De Bortoli, Lisa and Cresswell, John, "Australia's Indigenous Students in PISA 2000 : Results from an International Study" (2004).