The Numerical Ratio Effect For Digits And Number Words: The Lack Of Individual Differences

Yulia Kuzmina () and Elen Yusupova ()
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Yulia Kuzmina: National Research University Higher School of Economics
Elen Yusupova: National Research University Higher School of Economics

HSE Working papers from National Research University Higher School of Economics

Abstract: In the current study, we inspected the numerical ratio effect (NRE) for digits and number words in a comparison task using a large sample of third graders (N=1383, mean age was 9.84 years, 49% were girls) and applied linear mixed effects models to estimate the average NRE and its between-individual variability. An analysis demonstrated that the sample average NRE was significant for both digits and number words. For digits and number words, reaction time (RT) increased, while the numerical ratio between two compared numbers increased, although the patterns of changes were different for digits and number words. An inspection of between-individual variance in the NRE revealed that the NRE has no between-individual variance independent of variance in RT.

Keywords: numerical ratio effect; symbolic representation; digits; number words; individual differences (search for similar items in EconPapers)
JEL-codes: Z (search for similar items in EconPapers)
Pages: 27 pages
Date: 2023
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Published in WP BRP Series: Science, Psychology / PSY, May 2023, pages 1-27

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Persistent link: https://EconPapers.repec.org/RePEc:hig:wpaper:135psy2023

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