Abstract
The Approximate Number Sense (ANS) is a psychophysical construct thought to underlie quantity estimation, number processing, and the acquisition of number and math concepts during childhood. ANS acuity can be measured through speeded judgments of relative magnitude of symbolic (numerals) or non-symbolic (multiple objects) methods. However, the relationship between symbolic and non-symbolic methods of ANS, and their relationship with other measures of numerical ability, are relatively unclear. We analyzed the two methods on a sample of 22,187 job applicants through the pymetrics talent matching platform. We find that symbolic and non-symbolic measures of ANS are moderately correlated (r = 0.32). The symbolic measure was significantly more correlated with a simple numerical reasoning measure. Both were equally predictive of spatial reasoning, and equally less predictive of working memory performance. This supports the two methods as distinct measures of ANS acuity that relate to domain-specific mathematical cognition.
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Notes
- 1.
Pymetrics operates on voluntary data only, and as such demographic information is limited by applicant disclosure.
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Acknowledgements
We would like to thank Frida Polli, founder of pymetrics. We would also like to thank Su Mei Lee, Janelle Szary, Eugenia Fernandez and Nicholas DeVeau for their work on the development and testing of Magnitudes, Shapes, and Sequences; and Fedor Garin and Zachary Smith who led front-end design of the tests.
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Baker, L., Thissen-Roe, A. (2021). Differences in Symbolic and Non-symbolic Measures of Approximate Number Sense. In: Wiberg, M., Molenaar, D., González, J., Böckenholt, U., Kim, JS. (eds) Quantitative Psychology. IMPS 2020. Springer Proceedings in Mathematics & Statistics, vol 353. Springer, Cham. https://doi.org/10.1007/978-3-030-74772-5_9
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