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Now showing items 21-30 of 42
The spread of substance use and delinquency between adolescent twins
The spread of twin substance use and delinquency
(American Psychological Association, 2017-02)
This investigation examines the spread of problem behaviors (substance use and delinquency) between twin siblings. A sample of 628 twins (151 male twin pairs and 163 female twin pairs) drawn from the Quebec Newborn Twin ...
Twin classroom dilemma : to study together or separately?
(American Psychological Association, 2018-07)
There is little research to date on the academic implications of teaching twins in the same or different classroom. Consequently, it is not clear whether twin classroom separation is associated with positive or negative ...
Heterogeneity in the development of proactive and reactive aggression in childhood : Common and specific genetic-environmental factors
(Public Library of Science, 2017-12-06)
Background
Few studies are grounded in a developmental framework to study proactive and reactive aggression. Furthermore, although distinctive correlates, predictors and outcomes have been highlighted, proactive and reactive ...
Contagion of anxiety symptoms among adolescent siblings : a twin study
(Wiley, 2017-03)
This study examined whether social contagion of anxiety symptoms is present between siblings during early adolescence and whether this process is moderated by sex, relationship quality, and zygosity. Based on 634 monozygotic ...
Developmental pathways linking childhood temperament with antisocial behavior and substance use in adolescence : explanatory mechanisms in the peer environment
Temperament, peer social processes and antisocial behavior & substance use
(American Psychological Association, 2017-06)
This study investigated three developmental pathways involving the peer environment that may
explain how certain temperamental dispositions in childhood may become manifested in later
antisocial behavior and substance ...
A longitudinal empirical investigation of the pathways model of problem gambling
Longitudinal investigation of the pathways model
(Springer, 2017-12-31)
Background and Aims: The Pathways Model of Problem Gambling suggests the existence of
three developmental pathways to problem gambling, each differentiated by a set of predisposing
biopsychosocial characteristics: ...
Prospective links between friendship and early physical aggression : preliminary evidence supporting the role of friendship quality through a dyadic intervention
Friendship quality and early physical aggression
(Wayne State University Press, 2016)
Positive friendships have been related to decreasing levels of children’s physical aggression over time. While this evidence calls for interventions aimed at helping children build good-quality friendships, tests of causality ...
Does cortisol moderate the environmental association between peer victimization and depression symptoms? a genetically informed twin study
(Elsevier, 2017-10-31)
Many youths who are victimized by peers suffer from depression symptoms. However, not all bullying
victims become depressed and individuals’ biological sensitivity may play an important moderating role in this
regard. ...
Identifying at-risk profiles and protective factors for problem gambling : a longitudinal study across adolescence and early adulthood
(American Psychological Association, 2018-03-19)
Past studies have identified various risk and protective factors for problem gambling (PG). However, no study has examined the interplay between these factors using a combination of person-centered and variable-centered ...
Evidence of a unique and common genetic etiology between the CAR and the remaining part of the diurnal cycle : a study of 14 year-old twins
(Elsevier, 2016-04)
Introduction
By and large, studies have reported moderate contributions of genetic factors to cortisol secreted in the early morning and even smaller estimates later in the day. In contrast, the cortisol awakening ...