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the claim

Approximately half of the world's population is functionally bilingual.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that approximately half of the world's population is functionally bilingual?

Yes. Multiple reference sources and peer-reviewed studies support the claim that approximately half or more of the world's population is bilingual or multilingual.

Verdict: SUPPORTED · 5 sources for, 0 against · Last checked

The analysis

Judged against statistical and reference sources.

Evidence for · 5
Reference article covering this claim directly
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Wikipedia: Simultaneous bilingualism. (n.d.). Wikipedia. https://en.wikipedia.org/wiki/Simultaneous_bilingualism

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More for · 4
Reference article covering this claim directly
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Wikipedia: Multilingualism. (n.d.). Wikipedia. https://en.wikipedia.org/wiki/Multilingualism

Cites estimates that more than 50% of the world’s population is bilingual.
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PLOS (all journals): Using big data to understand bilingual performance in semantic fluency: Findings from the Canadian Longitudinal Study on Aging. (n.d.). PLOS (all journals). https://doi.org/10.1371/journal.pone.0277660

States approximately half of the world's population is bilingual or multilingual.
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Semantic Scholar peS2o: The Impact of Bilingualism on Executive Functions in Children and Adolescents: A Systematic Review Based on the PRISMA Method. (n.d.). Semantic Scholar peS2o. https://www.frontiersin.org/articles/10.3389/fpsyg.2020.574789/pdf

Mentions that more than half of the world's population is bilingual.
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Semantic Scholar peS2o: Differences in Brain Functional Networks of Executive Function Between Cantonese-Mandarin Bilinguals and Mandarin Monolinguals. (n.d.). Semantic Scholar peS2o. https://www.frontiersin.org/articles/10.3389/fnhum.2021.748919/pdf

What does the evidence say?

Judged against statistical and reference sources.

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