Do genetic ancestry tests increase racial essentialism? Findings from a randomized controlled trial

Posted in Articles, Health/Medicine/Genetics, Media Archive, Social Science, United States on 2021-11-08 19:31Z by Steven

Do genetic ancestry tests increase racial essentialism? Findings from a randomized controlled trial

PLOS ONE
Published 2020-01-29
DOI: 10.1371/journal.pone.0227399

Wendy D. Roth, Associate Professor of Sociology
University of Pennsylvania, Philadelphia

Şule Yaylacı, Banting Postdoctoral Fellow
Identity and Conflict Lab
University of Pennsylvania

Kaitlyn Jaffe, Ph.D. Candidate
Department of Sociology
University of British Columbia, Vancouver

Lindsey Richardson, Associate Professor of Sociology
University of British Columbia, Vancouver

Genetic ancestry testing is a billion-dollar industry, with more than 26 million tests sold by 2018, which raises concerns over how it might influence test-takers’ understandings of race. While social scientists argue that genetic ancestry tests may promote an essentialist view of race as fixed and determining innate abilities, others suggest it could reduce essentialist views by reinforcing a view of race as socially constructed. Essentialist views are a concern because of their association with racism, particularly in its most extreme forms. Here we report the first randomized controlled trial of genetic ancestry testing conducted to examine potential causal relationships between taking the tests and essentialist views of race. Native-born White Americans were randomly assigned to receive Admixture and mtDNA tests or no tests. While we find no significant average effect of genetic ancestry testing on essentialism, secondary analyses reveal that the impact of these tests on racial essentialism varies by type of genetic knowledge. Within the treatment arm, essentialist beliefs significantly declined after testing among individuals with high genetic knowledge, but increased among those with the least genetic knowledge. Additional secondary analysis show that essentialist beliefs do not change based on the specific ancestries reported in test-takers’ results. These results indicate that individuals’ interpretations of genetic ancestry testing results, and the links between genes and race, may depend on their understanding of genetics.

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