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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 ...
The Quebec newborn twin study at 21
(Cambridge University Press, 2019-10-21)
This paper is a revised and updated edition of a previous description of the Quebec Newborn Twin Study (QNTS), an ongoing prospective
longitudinal follow-up of a birth cohort of twins born between 1995 and 1998 in the ...
Longitudinal associations between delinquency, depression and anxiety symptoms in adolescence : testing the moderating effect of sex and family socioeconomic status
(Elsevier, 2018-09-25)
Purpose
To examine the cross-lagged associations between delinquency (nonviolent and violent), depression and anxiety symptoms in adolescence and to test the moderating effect of sex and family socioeconomic status ...
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 ...
Contribution of genes and environment to the longitudinal association between childhood impulsive‐aggression and suicidality in adolescence
(Wiley, 2019-11-28)
Background
Population‐based and family studies showed that impulsive‐aggression predicts suicidality; however, the underlying etiological nature of this association is poorly understood. The objective was to determine the ...
Early childhood factors associated with peer victimization trajectories from 6 to 17 years of age
(American Academy of Pediatrics, 2020)
OBJECTIVES:
To describe (1) the developmental trajectories of peer victimization from 6 to 17 years of age and (2) the early childhood behaviors and family characteristics associated with the trajectories.
METHODS:
We ...
Longitudinal associations of cannabis, depression, and anxiety in heterosexual and LGB adolescents
(American Psychological Association, 2021)
Cannabis use is linked to symptoms of depression and anxiety, particularly among sexual minorities.This study examines the relationships between cannabis, and depression and anxiety symptoms at 13,15, and 17 years using ...
Cannabis use, depression and suicidal ideation in adolescence : direction of associations in a population based cohort
(Elsevier, 2020-05-29)
Background
To clarify the direction of the association between frequency of cannabis use, depressive symptoms and suicidal ideation from 15 to 20 years using cross-lagged analyses.
Method
We included 1606 adolescents ...
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 ...
A longitudinal twin study of callous-unemotional traits during childhood
Longitudinal twin callous-unemotional, 1
(American Psychological Association, 2018-05)
Previous research indicates that genetic factors largely account for the stability of callous-unemotional (CU) traits in adolescence. However, the genetic-environmental etiology of the development of CU traits has not been ...