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Longitudinal Study: HILDA
Title: No Evidence That Siblings' Gender Affects Personality Across Nine Countries
Authors: Dudek, Thomas
Brenøe, Anne Ardila
Feld, Jan
Rohrer, Julia M
Publication Date: 23-Aug-2022
Pages: 09567976221094630
Journal: Psychological science
Keywords: Personality
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Abstract: Does growing up with a sister rather than a brother affect personality? In this article, we provide a comprehensive analysis of the effects of siblings' gender on adults' personality, using data from 85,887 people from 12 large representative surveys covering nine countries (United States, United Kingdom, The Netherlands, Germany, Switzerland, Australia, Mexico, China, and Indonesia). We investigated the personality traits of risk tolerance, trust, patience, locus of control, and the Big Five. We found no meaningful causal effects of the gender of the next younger sibling and no associations with the gender of the next older sibling. Given the high statistical power and consistent results in the overall sample and relevant subsamples, our results suggest that siblings' gender does not systematically affect personality.
DOI: 10.1177/095679762210946
Research collection: Journal Articles
Appears in Collections:Journal Articles

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