Cognitive Advantage in Bilingualism

@article{deBruin2015CognitiveAI,
  title={Cognitive Advantage in Bilingualism},
  author={Angela de Bruin and Barbara Treccani and Sergio Della Sala},
  journal={Psychological Science},
  year={2015},
  volume={26},
  pages={107 - 99}
}
It is a widely held belief that bilinguals have an advantage over monolinguals in executive-control tasks, but is this what all studies actually demonstrate? The idea of a bilingual advantage may result from a publication bias favoring studies with positive results over studies with null or negative effects. To test this hypothesis, we looked at conference abstracts from 1999 to 2012 on the topic of bilingualism and executive control. We then determined which of the studies they reported were… 
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