In the face of Hong Kong’s high grade-retention rates, this study aimed to investigate how Hong Kong secondary schools’ grade-retention composition is associated with student performance and socioeconomic inequality in student performance. As the research questions involved analysis at the school and student levels, this study employed hierarchical linear modelling to analyse the Programme for International Student Assessment (PISA) 2018 data. While grade retention was often suggested to have a negative impact on repeaters’ performance in studies using the same-age comparison strategy, this study found that a higher proportion of retained students at school was not associated with a reduction in students’ performance. However, greater socioeconomic inequality in student achievement was found in schools with higher retention rates. In addition to providing plausible explanations for these findings, this paper discusses the potential role of the government’s retention policies in these respects. Copyright © 2022 Informa UK Limited, trading as Taylor & Francis Group.

Data from Hong Kong PISA 2003 show that 15-year-old Hong Kong students who have immigrant parents from mainland China are grossly overrepresented in grades below the modal grade attended by most native Hong Kong students. Same-age comparison, when grade level is not taken into account, puts immigrants' children at a disadvantaged position in the mathematics, reading, and science literacy tests. The academic advantage of immigrants' children in Hong Kong is only revealed after grade is statistically controlled. Also, mainland immigrant students who are repeaters outperform native Hong Kong repeaters. Immigrant redshirting is a possible driving force behind these results.
[Copyright of Educational Research & Evaluation is the property of Routledge. Full article may be available at the publisher's website: http://dx.doi.org/10.1080/13803610903087078]