Migrants from South Africa, India and the Philippines have a lower failure rate in the nation's citizenship test than people from New Zealand or Britain, government figures show.
However, the majority of newcomers are passing the much-criticised test and it has an overall pass rate of 93 per cent.
Changes are expected to be made to the test by the new government, though, including the removal of a question about legendary Australian cricketer Sir Donald Bradman.
The question is one of many Labor believes was written by former prime minister John Howard, Fairfax newspapers report.
Failure rates were respectively 0.9 per cent for South Africans, 1.0 per cent for Indians and 1.9 per cent for Filipinos, compared to 2.2 per cent for Britons and 2.7 per cent for New Zealanders.
Immigration and Citizenship Minister Chris Evans is expected to commission a review of the test on Tuesday, to be conducted in April, six months after it was introduced.
"The test can play a valuable role in helping new citizens understand the rights and responsibilities of citizenship," Mr Evans told News Ltd.
The test was introduced on October 1 by the Howard government and includes multiple choice and true-or-false questions from a pool of 200 questions.
That's interesting.