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Social Aggression (social + aggression)

Distribution by Scientific Domains

Psychology	100%

Selected Abstracts

Examining Genetic and Environmental Effects on Social Aggression: A Study of 6-Year-Old Twins

CHILD DEVELOPMENT, Issue 4 2005
Mara Brendgen
Using a genetic design of 234 six-year-old twins, this study examined (a) the contribution of genes and environment to social versus physical aggression, and (b) whether the correlation between social and physical aggression can be explained by similar genetic or environmental factors or by a directional link between the phenotypes. For social aggression, substantial (shared and unique) environmental effects but only weak genetic effects were found. For physical aggression, significant effects of genes and unique environment were found. Bivariate modeling suggests that social and physical aggression share most of their underlying genes but only very few overlapping environmental factors. The correlation between the two phenotypes can also be explained by a directional effect from physical to social aggression. [source]

Continuity and change in social and physical aggression from middle childhood through early adolescence

AGGRESSIVE BEHAVIOR, Issue 5 2009
Marion K. Underwood
For a sample followed from age 9,13 (N=281), this investigation examined developmental trajectories for social and physical aggression as measured by teacher ratings. Trajectories for both forms of aggression were estimated first separately, then jointly. Mean levels of both social and physical aggression decreased over time for the overall sample, but with high variability of individual trajectories. Subgroups followed high trajectories for both social and physical aggression. Joint estimation yielded six trajectories: low stable, low increasers, medium increasers, medium desisters, high desisters, and high increasers. Membership in the high increaser group was predicted by male gender, unmarried parents, African American ethnicity, and maternal authoritarian and permissive parenting. Permissive parenting also predicted membership in the medium increaser group. This is one of the first studies to examine social aggression longitudinally across this developmental period. Though the results challenge the claim that social aggression is at its peak in early adolescence, the findings emphasize the importance of considering different developmental trajectories in trying to understand origins and outcomes of aggression. Aggr. Behav. 35:357,375, 2009. © 2009 Wiley-Liss, Inc. [source]

Development and validation of the Subtypes of Antisocial Behavior Questionnaire

AGGRESSIVE BEHAVIOR, Issue 5 2009
S. Alexandra Burt
Abstract There is converging evidence that physical aggression, rule-breaking, and social aggression constitute meaningfully distinct, if somewhat overlapping, components of the broader construct of antisocial behavior. Indeed, these subtypes appear to have different developmental trajectories, demographic correlates, and personological underpinnings. They also demonstrate important etiological distinctions. One potential limitation to accumulating additional scientific insights into the correlates and origins of these three types of antisocial behavior is the lack of an efficient self-report assessment in the public domain. We developed the 32-item Subtypes of Antisocial Behavior Questionnaire (STAB) to fill this gap. Our goal was to develop a brief measure that could reliably and validly assess each of the three major subtypes of antisocial behavior and that would be freely available for other researchers. The present series of studies provides initial evidence of the factorial validity, internal consistency, and criterion-related validity of the STAB scales. In short, it appears that the STAB is a brief and useful measure that can be used to differentiate and assess physically aggressive, rule-breaking, and socially aggressive forms of antisocial behavior. Aggr. Behav. 35:376,398, 2009. © 2009 Wiley-Liss, Inc. [source]

Linkages Between Children's and Their Friends' Social and Physical Aggression: Evidence for a Gene,Environment Interaction?

CHILD DEVELOPMENT, Issue 1 2008
Mara Brendgen
Based on a sample of 406 seven-year-old twins, this study examined whether exposure to friends' social or physical aggression, respectively, moderates the effect of heritability on children's own social and physical aggression. Univariate analyses showed that children's own social and physical aggression were significantly explained by genetic factors, whereas friends' social and physical aggression represented "true" environmental factors that were unrelated to children's genetic dispositions. Multivariate analyses further suggested a possible gene,environment interaction in the link between friends' and children's physical aggression but not in the link between friends' and children's social aggression. Instead, friends' social aggression was directly related to children's social aggression, in addition to genetic effects on this behavior. Theoretical and practical implications of these results are discussed. [source]