Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/268446 
Year of Publication: 
2023
Series/Report no.: 
WZB Discussion Paper No. SP II 2023-201
Publisher: 
Wissenschaftszentrum Berlin für Sozialforschung (WZB), Berlin
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 whether 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 hypotheses 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.
Subjects: 
Cognitive Reflection Test
2D:4D
Replication
Prenatal Testosterone
Sex
JEL: 
D87
D9
Document Type: 
Working Paper

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