A study on the executive functioning skills of Greek-English bilingual children - a nearest neighbour approach

Athanasia Papastergiou*, Eirini Sanoudaki, Marco Tamburelli, Visiliki Chondrogianni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Findings of bilingual participants outperforming their monolingual counterparts in executive functioning tasks have been repeatedly reported in the literature (Bialystok, 2017). However, uncontrolled factors or imperfectly matched samples might affect the reliability of these findings. This study aims to take into account a range of relevant variables in combination with innovative analyses to investigate the performance of one unstudied language group, Greek-English bilingual children in the north of England, compared to monolingual control groups. Our battery of executive function tasks taps into inhibition, updating and shifting. We use k-means nearest neighbour methods to match the groups and factor analysis to determine language proficiency. We find that bilinguals’ accuracy is on a par with their monolingual peers, however, they are faster in inhibition and working memory tasks. Our study provides strong evidence for the presence of a bilingual advantage in these domains, while making important methodological contributions to the field.
Original languageEnglish
Pages (from-to)78 - 94
JournalBilingualism: Language and Cognition
Volume26
Issue number1
Early online date8 Jul 2022
DOIs
Publication statusPublished - Jan 2023

Keywords / Materials (for Non-textual outputs)

  • executive function
  • supplementary school
  • Greek
  • English
  • bilingualism
  • language skills
  • language use
  • k-means

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