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Direct linkCarbonneau, Rene; Vitaro, Frank; Brendgen, Mara; Boivin, Michel; Tremblay, Richard E. – Developmental Psychology, 2022
The present study investigated prenatal and early postnatal risk factors associated with developmental patterns of disruptive behaviors (DBs; e.g., hyperactivity-impulsivity, noncompliance, physical aggression) from ages 1.5 to 5 years in a population birth cohort (N = 2,057; 50.7% boys). Six high-trajectory classes obtained by latent growth…
Descriptors: Preschool Children, Behavior Problems, Child Behavior, Risk
Aubé, Sophie; Mimeau, Catherine; Gagnon, Eloi; Remon, Alexandra; Brendgen, Mara; Vitaro, Frank; Ouellet-Morin, Isabelle; Tremblay, Richard E.; Boivin, Michel; Dionne, Ginette – Developmental Psychology, 2022
Given the importance of writing for academic achievement, this study aimed to understand how early oral language contributes to later writing skills. The first objective was to determine if preschool language skills were associated with high school writing, and if so, whether they contributed directly or indirectly through school age language. The…
Descriptors: Language Skills, Writing Skills, Academic Achievement, Oral Language
White, Elaine K.; Garon-Carrier, Gabrielle; Tosto, Maria G.; Malykh, Sergey B.; Li, Xinying; Kiddle, Beatrix; Riglin, Lucy; Byrne, Brian; Dionne, Ginette; Brendgen, Mara; Vitaro, Frank; Tremblay, Richard E.; Boivin, Michel; Kovas, Yulia – Developmental Psychology, 2018
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 educational outcomes. As a result, parents and teachers have insufficient evidence to make a well-informed decision when twins…
Descriptors: Twins, Educational Practices, Student Placement, Children
Tosto, Maria Grazia; Garon-Carrier, Gabrielle; Gross, Susan; Petrill, Stephen A.; Malykh, Sergey; Malki, Karim; Hart, Sara A.; Thompson, Lee; Karadaghi, Rezhaw L.; Yakovlev, Nikita; Tikhomirova, Tatiana; Opfer, John E.; Mazzocco, Michèle M. M.; Dionne, Ginette; Brendgen, Mara; Vitaro, Frank; Tremblay, Richard E.; Boivin, Michel; Kovas, Yulia – British Journal of Educational Psychology, 2019
Background: The number line task assesses the ability to estimate numerical magnitudes. People vary greatly in this ability, and this variability has been previously associated with mathematical skills. However, the sources of individual differences in number line estimation and its association with mathematics are not fully understood. Aims: This…
Descriptors: Twins, Individual Differences, Computation, Mathematics Skills
Viau, Sarah-Jeanne; Denault, Anne-Sophie; Dionne, Ginette; Brendgen, Mara; Geoffroy, Marie-Claude; Côté, Sylvana; Larose, Simon; Vitaro, Frank; Tremblay, Richard E.; Boivin, Michel – Journal of Early Adolescence, 2020
This study aimed to identify joint trajectories of peer cyber and traditional victimization from ages 13 to 17 and individual, family, peer, and school risk factors associated with group membership. The sample was composed of 1,194 adolescents (54.2% girls). Cyber and traditional victimization were assessed at ages 13, 15, and 17. The results…
Descriptors: Victims, Peer Relationship, Adolescents, At Risk Persons
Guimond, Fanny-Alexandra; Brendgen, Mara; Vitaro, Frank; Forget-Dubois, Nadine; Dionne, Ginette; Tremblay, Richard E.; Boivin, Michel – Developmental Psychology, 2014
This study used a genetically informed design to assess the effects of friends' and nonfriends' reticent and dominant behaviors on children's observed social reticence in a competitive situation. Potential gene-environment correlations (rGE) and gene-environment interactions (GxE) in the link between (a) friends' and…
Descriptors: Genetics, Environmental Influences, Prediction, Correlation
Salvas, Marie-Claude; Vitaro, Frank; Brendgen, Mara; Dionne, Ginette; Tremblay, Richard E.; Boivin, Michel – Developmental Psychology, 2014
Several authors consider high and frequent conflicts between friends during childhood as a serious risk for subsequent conduct problems such as generalized physical aggression toward others (e.g., Kupersmidt, Burchinal, & Patterson, 1995; Sebanc, 2003). Although it seems logical to assume that friendship conflict could have some negative…
Descriptors: Friendship, Behavior Problems, Aggression, Conflict
Brendgen, Mara; Vitaro, Frank; Barker, Edward D.; Girard, Alain; Dionne, Ginette; Tremblay, Richard E.; Boivin, Michel – Developmental Psychology, 2013
Using a genetically informed design, this study examined the additive and interactive effects of genetic risk, personal peer victimization experiences, and peer victimization experienced by others on children's aggression and depression symptoms. Of major interest was whether these effects varied depending on whether or not the victimized others…
Descriptors: Aggression, Genetics, Social Environment, Depression (Psychology)
Brendgen, Mara; Vitaro, Frank; Boivin, Michel; Girard, Alain; Bukowski, William M.; Dionne, Ginette; Tremblay, Richard E.; Perusse, Daniel – Journal of Child Psychology and Psychiatry, 2009
Background: Genetic risk for depressive behavior may increase the likelihood of exposure to environmental stressors (gene-environment correlation, rGE). By the same token, exposure to environmental stressors may moderate the effect of genes on depressive behavior (gene-environment interaction, GxE). Relating these processes to a peer-related…
Descriptors: Twins, Peer Groups, Genetics, Peer Acceptance
Vitaro, Frank; Barker, Edward D.; Brendgen, Mara; Tremblay, Richard E. – Journal of Child Psychology and Psychiatry, 2012
Objective: This study aimed to identify the pathways through which a preventive intervention targeting young low-SES disruptive boys could result in lower crime involvement during adulthood. Method: The preventive intervention was implemented when the children were between 7 and 9 years and included three components (i.e. social skills, parental…
Descriptors: Control Groups, Intervention, Delinquency, Criminals
Veronneau, Marie-Helene; Vitaro, Frank; Brendgen, Mara; Dishion, Thomas J.; Tremblay, Richard E. – Developmental Psychology, 2010
This study tested a transactional model of reciprocal influences regarding students' peer experiences (peer acceptance, peer rejection, and friends' academic achievement) and students' academic achievement from middle childhood to early adolescence. This longitudinal model was tested on 452 students (198 girls), mostly Caucasian and French…
Descriptors: Academic Achievement, Early Adolescents, Children, Friendship
Guimond, Fanny-Alexandra; Brendgen, Mara; Forget-Dubois, Nadine; Dionne, Ginette; Vitaro, Frank; Tremblay, Richard E.; Boivin, Michel – Journal of Abnormal Child Psychology, 2012
This study used the monozygotic (MZ) twin difference method to examine whether the unique environmental effects of maternal and paternal overprotection and hostility at the age of 30 months predict twins' observed social reticence in a competitive situation in kindergarten, while controlling for the effect of family-wide influences, including…
Descriptors: Twins, Body Weight, Females, Parenting Styles
Boivin, Michel; Brendgen, Mara; Vitaro, Frank; Dionne, Ginette; Girard, Alain; Perusse, Daniel; Tremblay, Richard E. – Child Development, 2013
This study assessed the genetic and environmental contributions to peer difficulties in the early school years. Twins' peer difficulties were assessed longitudinally in kindergarten (796 twins, "M"[subscript age] = 6.1 years), Grade 1 (948 twins, "M"[subscript age] = 7.1 years), and Grade 4 (868 twins, "M"[subscript…
Descriptors: Twins, Kindergarten, Genetics, Grade 1
Dussault, Frederic; Brendgen, Mara; Vitaro, Frank; Wanner, Brigitte; Tremblay, Richard E. – Journal of Child Psychology and Psychiatry, 2011
Background: Research shows high co-morbidity between gambling problems and depressive symptoms, but the directionality of this link is unclear. Moreover, the co-occurrence of gambling problems and depressive symptoms could be spurious and explained by common underlying risk factors such as impulsivity and socio-family risk. The goals of the…
Descriptors: Conceptual Tempo, Late Adolescents, Risk, Depression (Psychology)
Rivizzigno, Alessandra S.; Brendgen, Mara; Feng, Bei; Vitaro, Frank; Dionne, Ginette; Tremblay, Richard E.; Boivin, Michel – Merrill-Palmer Quarterly: Journal of Developmental Psychology, 2014
Enriched environments may moderate the effect of genetic factors on prosocial leadership (gene-environment interaction, G × E). However, positive environmental experiences may also themselves be influenced by a genetic disposition for prosocial leadership (gene-environment correlation, rGE). Relating these processes to friendships, the present…
Descriptors: Genetics, Environmental Influences, Prosocial Behavior, Leadership
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