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The impact of test language on PISA scores. New evidence from Wales

Jerrim, J; Lopez-Agudo, LA; Marcenaro-Gutierrez, OD; (2022) The impact of test language on PISA scores. New evidence from Wales. British Educational Research Journal , 48 (3) pp. 420-445. 10.1002/berj.3774. Green open access

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Abstract

In this paper we investigate the link between the language in which pupils take the Programme for International Student Assessment (PISA) test and the scores they achieve in this assessment, focusing upon the case of Wales. Using five rounds of PISA data and an instrumental variable approach, we show how pupils who took the test in Welsh score around 0.3 standard deviations (30 PISA test points) lower in reading, mathematics and science than their peers who took the test in English. This finding is robust to different model specifications and statistical approaches. We argue that this may indicate that the academic performance of teenagers in Wales may be underestimated in PISA – particularly amongst those who take this test in Welsh.

Type: Article
Title: The impact of test language on PISA scores. New evidence from Wales
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/berj.3774
Publisher version: https://doi.org/10.1002/berj.3774
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: home language, PISA, test language, Wales
UCL classification: UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education
UCL > Provost and Vice Provost Offices > School of Education > UCL Institute of Education > IOE - Social Research Institute
UCL > Provost and Vice Provost Offices > School of Education
UCL
URI: https://discovery.ucl.ac.uk/id/eprint/10145086
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