The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors. / Lewis, Gary; Bates, Tim.

In: Social Psychological and Personality Science, Vol. 8, No. 8, 01.11.2017, p. 897-903.

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The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors. / Lewis, Gary; Bates, Tim.

In: Social Psychological and Personality Science, Vol. 8, No. 8, 01.11.2017, p. 897-903.

Research output: Contribution to journalArticlepeer-review

Harvard

Lewis, G & Bates, T 2017, 'The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors', Social Psychological and Personality Science, vol. 8, no. 8, pp. 897-903. https://doi.org/10.1177/1948550617699250

APA

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Author

Lewis, Gary ; Bates, Tim. / The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors. In: Social Psychological and Personality Science. 2017 ; Vol. 8, No. 8. pp. 897-903.

BibTeX

@article{adc209cd463043f1b5713134caef6542,
title = "The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors",
abstract = "Twin studies of in-group favoritism have reported roughly equal influences of genetic and environmental factors. All, however, have solely relied on cross-sectional approaches, leaving open the question of whether genetic and environmental factors have similar roles on stability and change for in-group favoritism across time. While in-group favoritism is commonly perceived to reflect environmental influences, stable environmental effects are rare for psychological traits, thus suggesting that genetic influences may play the major role in the stability of favoritism. Here, we used addressed this issue using a 10-year (two waves) longitudinal twin design. In-group favoritism showed high rank-order stability (r = .67). Seventy four percent of this rank-order stability was attributable to genes. A broadly similar pattern was observed for race, ethnic, and religious favoritism. By contrast, changes in favoritism almost entirely reflected nonshared environmental influences. These findings indicate that environmental influences underpin change in favoritism, while the stability of favoritism mostly reflects genetic influences.",
author = "Gary Lewis and Tim Bates",
year = "2017",
month = nov,
day = "1",
doi = "10.1177/1948550617699250",
language = "English",
volume = "8",
pages = "897--903",
journal = "Social Psychological and Personality Science",
number = "8",

}

RIS

TY - JOUR

T1 - The Temporal Stability of In-Group Favoritism Is Mostly Attributable to Genetic Factors

AU - Lewis, Gary

AU - Bates, Tim

PY - 2017/11/1

Y1 - 2017/11/1

N2 - Twin studies of in-group favoritism have reported roughly equal influences of genetic and environmental factors. All, however, have solely relied on cross-sectional approaches, leaving open the question of whether genetic and environmental factors have similar roles on stability and change for in-group favoritism across time. While in-group favoritism is commonly perceived to reflect environmental influences, stable environmental effects are rare for psychological traits, thus suggesting that genetic influences may play the major role in the stability of favoritism. Here, we used addressed this issue using a 10-year (two waves) longitudinal twin design. In-group favoritism showed high rank-order stability (r = .67). Seventy four percent of this rank-order stability was attributable to genes. A broadly similar pattern was observed for race, ethnic, and religious favoritism. By contrast, changes in favoritism almost entirely reflected nonshared environmental influences. These findings indicate that environmental influences underpin change in favoritism, while the stability of favoritism mostly reflects genetic influences.

AB - Twin studies of in-group favoritism have reported roughly equal influences of genetic and environmental factors. All, however, have solely relied on cross-sectional approaches, leaving open the question of whether genetic and environmental factors have similar roles on stability and change for in-group favoritism across time. While in-group favoritism is commonly perceived to reflect environmental influences, stable environmental effects are rare for psychological traits, thus suggesting that genetic influences may play the major role in the stability of favoritism. Here, we used addressed this issue using a 10-year (two waves) longitudinal twin design. In-group favoritism showed high rank-order stability (r = .67). Seventy four percent of this rank-order stability was attributable to genes. A broadly similar pattern was observed for race, ethnic, and religious favoritism. By contrast, changes in favoritism almost entirely reflected nonshared environmental influences. These findings indicate that environmental influences underpin change in favoritism, while the stability of favoritism mostly reflects genetic influences.

U2 - 10.1177/1948550617699250

DO - 10.1177/1948550617699250

M3 - Article

VL - 8

SP - 897

EP - 903

JO - Social Psychological and Personality Science

JF - Social Psychological and Personality Science

IS - 8

ER -