Test Statistics

Please select a year below to view the relevant data.

Candidate performance

Grade information

For the period covered by this report, OET was assessed on a 6-grade scale (A to E, including C+) and reports grades for each individual sub-test[1] . Grades for each sub-test are shown here according to a variety of classifications. OET does not report overall grades, only for each individual sub-test.

[1] Note: Since September 2018 OET has been assessed on a new score reporting system from 500 to 0, with the 6-grade scale (A-E including C+) to be used alongside this new score reporting system.

Download candidate performance

Demographic data

Download demographic data

Test performance

The reliability of each sub-test is reported using Cronbach’s Alpha, which measures the internal consistency of a test. The figures below show the average reliability values for the combined administrations of the OET test per sub-test in 2018.

  • Reliability of Listening sub-test: 0.86
  • Reliability of Reading sub-test: 0.83
  • Reliability of Writing sub-test: 0.79
  • Reliability of Speaking sub-test: 0.83

Candidate performance

Grade information

For the period covered by this report, OET was assessed on a 5-grade scale (A to E) and reports grades for each individual sub-test . Grades for each sub-test are shown here according to a variety of classifications. OET does not report overall grades, only for each individual sub-test.

Download candidate performance

Demographic data

Download demographic data

Test performance

The reliability of each sub-test is reported using Cronbach’s Alpha, which measures the internal consistency of a test. The figures below show the average reliability values for the combined administrations of the OET test per sub-test in 2017.

  • Reliability of Listening sub-test: 0.88
  • Reliability of Reading sub-test: 0.83
  • Reliability of Writing sub-test: 0.82
  • Reliability of Speaking sub-test: 0.86