Abstract
Behavior genetic research has revealed that many "environmental" variables are partially influenced by genetic factors. Known as gene-environment correlation (rGE), this line of scholarship provides insight on how and why individuals select into certain environments. Juxtaposing this body of evidence with research on peer group homophily-the tendency for peers to resemble one another on certain traits such as academic ability-raised two research hypotheses: (1) youth will associate with peers who receive grades similar to themselves (i.e., homophily for GPA); and (2) a portion of the variance in peer group GPA (i.e., the peer network average GPA) will be explained by individuals' genetic self-selection into the peer group (rGE). The results supported both hypotheses by showing a strong predictive relationship between the target individual's GPA and that of his/her peers and by revealing that 72% of the variance in peer group GPA was explained by genetic influences.
Original language | English (US) |
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Pages (from-to) | 41-49 |
Number of pages | 9 |
Journal | Social Networks |
Volume | 38 |
Issue number | 1 |
DOIs | |
State | Published - Jul 2014 |
Keywords
- Active gene-environment correlation (rGE)
- Behavior genetic
- Homophily
- Peer network GPA
ASJC Scopus subject areas
- Anthropology
- Sociology and Political Science
- Social Sciences(all)
- Psychology(all)