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Updated: Apr 28, 2026
The Replica Set Method: A High-throughput Approach to Quantitatively Measure Caenorhabditis elegans Lifespan
Published on: June 29, 2018
2D:4D and Self-Employment: A Preregistered Replication Study in a Large General Population Sample
Frank M Fossen1,2, Levent Neyse2,3,4, Magnus Johannesson5
1Department of Economics, University of Nevada, Reno, USA.
Abstract:
The 2D: 4D digit ratio, the ratio of the length of the second finger to the length of the fourth finger, is often considered a proxy for testosterone exposure in utero. A recent study reported, among other things, an association between the left-hand 2D:4D and self-employment in a sample of 974 adults. In this preregistered study, we replicate the 2D:4D results on a sample of more than 2100 adults from the German Socioeconomic Panel-Innovation Sample (SOEP-IS). We find no statistically significant associations between 2D:4D and self-employment.
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