Search
Now showing items 1-10 of 35
Aggression can be contagious : longitudinal associations between proactive aggression and reactive aggression among young twins
(Wiley, 2015-09)
The present study examined sibling influence over reactive and proactive aggression in a sample of 452 same‐sex twins (113 male dyads, 113 female dyads). Between and within siblings influence processes were examined as a ...
Genetic and environmental influences on developmental trajectories of adolescent alcohol use
(Springer, 2019-01-31)
Adolescent alcohol use demonstrates distinct developmental trajectories with different times of onset, levels, and
rates of growth. Twin research on adolescent alcohol use has shown that genetic influences are consistent ...
Friendships and deviancy training in young children
(Emerald, 2015-04-13)
Purpose
The purpose of this study was to test a new approach to deviancy training, that is, the shaping and reinforcing of disruptive behaviors in social interaction, which considers not only reinforcement, but also the ...
Associations between peer victimization and suicidal ideation and suicide attempt during adolescence : results from a prospective population-based birth cohort
(Elsevier, 2015-11-26)
Objective:To test whether adolescents who are victim-ized by peers are at heightened risk for suicidal ideationand suicide attempt, using both cross-sectional andprospective investigations.Method:Participants are ...
Associations between mother-child relationship quality and adolescent adjustment : using a genetically controlled design to determine the direction and magnitude of effects
(Sage, 2016-05)
This study used a genetically controlled design to examine the direction and the magnitude of effects in the over-time associations between
perceived relationship quality with mothers and adolescent maladjustment (i.e., ...
Does shyness interact with peer group affiliation in predicting substance use in adolescence?
(American Psychological Association, 2017-11-20)
Cigarette use and binge drinking are risky behaviors emerging during adolescence. Although many beneficial factors are well documented, studies linking shyness to substance use are somehow conflicting, which may be due to ...
Birth size and gestational age in opposite-sex twins as compared to same-sex twins : an individualbased pooled analysis of 21 cohorts
(Nature research, 2018-04-19)
It is well established that boys are born heavier and longer than girls, but it remains unclear whether birth size in twins is affected by the sex of their co-twin. We conducted an individual-based pooled analysis of 21 ...
Links between friends' physical aggression and adolescents' physical aggression : what happens if gene-environment correlations are controlled?
(Sage, 2016-05)
Exposure to deviant friends has been found to be a powerful source of influence on children’s and adolescents’ aggressive behavior. However, the contribution of deviant friends may have been overestimated because of a ...
Peer victimization and anxiety in genetically vulnerable youth : the protective roles of teachers' self-efficacy and anti-bullying classroom rules
(Springer, 2015-08)
Many victimized youngsters are at risk of developing internalizing problems, and this risk seems to be especially pronounced when they are genetically vulnerable for these problems. It is unclear, however, whether protective ...
Gene-environment correlation linking aggression and peer victimization : do classroom behavioral norms matter?
(Springer, 2015)
Using a genetically informed design based on 197 Monozygotic and Dizygotic twin pairs assessed in grade 4, this study examined 1) whether, in line with a gene-environment correlation (rGE), a genetic disposition for physical ...