ATAR

Determination of an Australian Tertiary Admission Rank (ATAR)

The ATAR ranges between zero and 99.95.  It reports a student’s rank relative to all other Western Australian students of Year Twelve school leaving age.  It takes into account the number of students with a Tertiary Entrance Aggregate (TEA) as well as the number of people of Year Twelve school leaving age in the population of this state.  An ATAR of 75 indicates that you have an overall rating equal to or better than 75% of the Year Twelve school leaving age population in WA.

Scaling

All course results will be scaled to ensure fairness to all students.  A scaled score for an ATAR course can only be calculated if a student sits the ATAR examination for that course.  The Average Marks Scaling process is used to scale marks obtained in a course. 

Calculation of the ATAR 

The ATAR is derived from the Tertiary Entrance Aggregate (TEA).  The TEA will be calculated by adding a student’s best four scaled scores plus any applicable course-specific bonuses, based on the following rules:

• There is a specific list of courses which can be used in the ATAR.
• No more than two mathematics scaled scores can be used in the calculation of an ATAR.  
• In calculating the scaled score, equal weight is given to the final school mark and the final examination mark, except where courses/subjects are taken on a private basis.
• The maximum TEA is 430.

TEA to ATAR

The Tertiary Institutions Service Centre (TISC) will construct a table to convert each TEA to an ATAR.  This table is constructed annually.