Did bachelor degree enrolments decline significantly between 2016 and 2022?

This is a post I started writing several months ago, before the Accord final report and other major higher education policy announcements pushed it aside. I have completed it as a companion to my census attainment post on data issues in higher education.

Late last year several media outlets, using data from the ABS Education and Work survey, reported declining bachelor degree enrolments. In November 2023, bachelor degree enrolments were said to be down 12 per cent between 2016 and 2022. Another newspaper rounded the drop to 13 per cent. In December 2023 bachelor degree enrolments were said to be at their lowest level since 2011.

This post explains why these media stories exaggerate enrolment decline. The most important reason is that Education and Work does not count offshore international students. But comparing Education and Work results with enrolment data shows that it typically undercounts onshore international students and overcounts domestic students, particularly those in bachelor degrees. It also has occasional rogue surveys that produce misleading comparison years.

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How reliable are Census educational attainment numbers?

I am a big user of ABS data, including for calculating educational participation and attainment rates. Recently I have been using Census longitudinal data, which links records from a 5% sample of the Australian Census between different Census dates.

Due to respondent inattention to questions, or mistakes by family members answering for others, I would expect some inconsistent answers between censuses. But inconsistency rates for education-related questions are alarmingly high.

For the highest year of school education the ABS-reported inconsistency rate between 2016 and 2021 was 6.8%. For highest non-school qualification the inconsistency rate was 8.9% – meaning that a lower highest education qualification was reported in 2021 than 2016.

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