Journal ArticleDOI
Three Laws of Behavior Genetics and What They Mean
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TLDR
Twin studies offer a useful methodological shortcut, but do not show that genes are more fundamental than environments, andotype is in fact a more systematic source of variability than environment.Abstract:
Behavior genetics has demonstrated that genetic variance is an important component of variation for all behavioral outcomes, but variation among families is not. These results have led some critics of behavior genetics to conclude that heritability is so ubiquitous as to have few consequences for scientific understanding of development, while some behavior genetic partisans have concluded that family environment is not an important cause of developmental outcomes. Both views are incorrect. Genotype is in fact a more systematic source of variability than environment, but for reasons that are methodological rather than substantive. Development is fundamentally nonlinear, interactive, and difficult to control experimentally. Twin studies offer a useful methodological shortcut, but do not show that genes are more fundamental than environments.read more
Citations
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Liberals and Conservatives Rely on Different Sets of Moral Foundations
TL;DR: Across 4 studies using multiple methods, liberals consistently showed greater endorsement and use of the Harm/care and Fairness/reciprocity foundations compared to the other 3 foundations, whereas conservatives endorsed and used the 5 foundations more equally.
Journal ArticleDOI
Personality development: stability and change.
TL;DR: This review examines research about the structure of personality in childhood and in adulthood, with special attention to possible developmental changes in the lower-order components of broad traits.
Journal ArticleDOI
Genes, evolution, and personality.
TL;DR: It is concluded that the behavior genetics of personality is alive and flourishing but that there remains ample scope for new growth and that much social science research is seriously compromised if it does not incorporate genetic variation in its explanatory models.
Journal ArticleDOI
Are Political Orientations Genetically Transmitted
TL;DR: The authors combine relevant findings in behavioral genetics with their own analysis of data on a large sample of twins to test the hypothesis that, contrary to the assumptions embedded in political science research, political attitudes have genetic as well as environmental causes.
Journal ArticleDOI
The bright and dark sides of leader traits: A review and theoretical extension of the leader trait paradigm
TL;DR: In this paper, a conceptual model that considers the source of leader traits, mediators and moderators of their effects on leader emergence and leadership effectiveness, and distinguish between perceived and actual leadership effectiveness is presented.
References
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Theoretical risks and tabular asterisks: Sir Karl, Sir Ronald, and the slow progress of soft psychology.
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Journal ArticleDOI
Why are children in the same family so different from one another
Robert Plomin,Denise Daniels +1 more
TL;DR: For example, the authors found that environmental differences between children in the same family represent the major source of environmental variance for personality, psychopathology, and cognitive abilities, and found that these environmental influences make two children in a same family as different from one another as are pairs of children selected randomly from the population.
Book ChapterDOI
A Terror Management Theory of Social Behavior: The Psychological Functions of Self-Esteem and Cultural Worldviews
TL;DR: In this article, the authors discuss the dual-component cultural anxiety buffer: worldview and self-esteem, and a terror management analysis of social behavior in great detail, focusing on one particular motive that makes it distinctly human and, unfortunately, distinctly destructive.
Journal ArticleDOI
A dual-process model of defense against conscious and unconscious death-related thoughts: an extension of terror management theory
TL;DR: Proximal defenses, which entail suppressing death-related thoughts or pushing the problem of death into the distant future by denying one's vulnerability, are rational, threat-focused, and activated when thoughts of death are in current focal attention.