Cognitive reflection and 2D:4D: Evidence from a large population sample

Levent Neyse, Frank Fossen, Magnus Johannesson and Anna Dreber

EconStor Open Access Articles and Book Chapters, 2023, vol. 209, 288-307

Abstract: Bosch-Domènech et al. (2014) reported a negative association between 2D:4D, a suggested marker of prenatal testosterone exposure, and the Cognitive Reflection Test (CRT) in a sample of 623 university students. In this pre-registered study, we test if we can replicate their findings in a general population sample of over 2,500 individuals from Germany. We find no statistically significant association between 2D:4D and the CRT in any of our primary hypothesis tests, or in any of our pre-registered exploratory analyses and robustness tests. The evidence is strong (based on the 99.5% confidence intervals in all three primary hypothesis tests) against effect sizes in the hypothesized direction larger than 0.075 CRT units (0.073 of the CRT standard deviation) for a one standard deviation change in 2D:4D.

Keywords: Cognitive reflection test; 2d:4d; Replication; Prenatal testosterone; Sex (search for similar items in EconPapers)
Date: 2023
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Journal Article: Cognitive reflection and 2D:4D: Evidence from a large population sample (2023)
Working Paper: Cognitive reflection and 2D:4D: Evidence from a large population sample (2023)
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Persistent link: https://EconPapers.repec.org/RePEc:zbw:espost:333208

DOI: 10.1016/j.jebo.2023.03.020

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