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the claim

Sibling-in-law kinship terms exhibit cross-linguistic polysemy due to shared social structures.

the verdict
CONTESTED
contested - evenly split
Recorded sources
2 sources for · 2 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 Sibling-in-law kinship terms exhibit cross-linguistic polysemy due to shared social structures?

Partly. While global databases facilitate the study of kinship terminology, phylogenetic studies directly testing the hypothesis find little evidence that kinship terminology co-evolves with social structures like marriage organization or residence rules.

Verdict: CONTESTED · 2 sources for, 2 against · Last checked

The analysis

Papers [6] and [10] provide data and computational models showing the diversity and learning of kinship terms globally, supporting the study of kinship structures. However, papers [7] and [9] specifically test whether kinship terminologies co-evolve with social structures and find limited or no support for this hypothesis, creating a contested landscape regarding the deterministic link between social structure and kinship terminology.

The evidence we hold leans evenly split

How this was weighed

official record 3x · fact-check 2x · hedged 1x · crowd & reference 1x

  • Logical word learning: The case of kinship. · peer-reviewed · supports · weight 1.05 · 2022
  • Kinbank: A global database of kinship terminology. · peer-reviewed · supports · weight 1.05 · 2023
  • A Phylogenetic Comparative Study of Bantu Kinship Terminolog · peer-reviewed · refutes · weight 1.05 · 2016
  • Pama-Nyungan grandparent systems change with grandchildren, · peer-reviewed · refutes · weight 1.05 · 2020
Evidence for · 2
Logical word learning: The case of kinship.
2022
Demonstrates computational models of kinship learning across diverse linguistic systems.
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F, M. & ST, P. (2022). Logical word learning: The case of kinship.. doi.org. https://doi.org/10.3758/s13423-021-02017-5

Evidence against · 2
A Phylogenetic Comparative Study of Bantu Kinship Terminology Finds Limited Support for Its Co-Evolution with Social Organisation.
2016
Finds limited support for the co-evolution of kinship terminology with social organisation in Bantu groups.
Get citation
M, G. & R, M. (2016). A Phylogenetic Comparative Study of Bantu Kinship Terminology Finds Limited Support for Its Co-Evolution with Social Organisation.. doi.org. https://doi.org/10.1371/journal.pone.0147920

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More for · 1
Kinbank: A global database of kinship terminology.
2023
Introduces a global database of kinship terminology to analyze diversity in human family organization.
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S, P., W, B., SJ, G., K, Q., C, S., P, A., J, B., C, B., J, C., A, D., A, D., NP, M., LH, A., R, S., J, H., T, H., A, M., L, P., PM, R., SG, R., RM, R., E, T., N, E., & FM, J. (2023). Kinbank: A global database of kinship terminology.. doi.org. https://doi.org/10.1371/journal.pone.0283218

More against · 1
Pama-Nyungan grandparent systems change with grandchildren, but not cross-cousin terms or social norms.
2020
Finds no support for the co-evolution of kinship systems with community marriage organisation or post-marital residence.
Get citation
C, S., C, B., R, D., & FM, J. (2020). Pama-Nyungan grandparent systems change with grandchildren, but not cross-cousin terms or social norms.. doi.org. https://doi.org/10.1017/ehs.2020.31

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first checked05 Aug 2026
judged → CONTESTED · 2705 Aug 2026
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