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Carbonneau, 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
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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
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Laursen, Brett; Dickson, Daniel J.; Boivin, Michel; Bowker, Julie C.; Brendgen, Mara; Rubin, Kenneth H. – Developmental Psychology, 2021
This replication study revisited conclusions from 2 previous investigations (Gauze, Bukowski, Aquan-Assee, & Sippola, 1996; van Aken & Asendorpf, 1997), which suggested that support from friends buffers against diminished self-esteem arising from poor quality relationships with mothers during the transition into adolescence. The aim of…
Descriptors: Adolescents, Parent Child Relationship, Self Esteem, Friendship
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Vitaro, Frank; Beaver, Kevin M.; Brendgen, Mara; Dickson, Daniel J.; Dionne, Ginette; Boivin, Michel – Developmental Psychology, 2021
The goal of the present study was to replicate Burt et al. (2009) and Hou et al. (2013) findings by determining the contribution of peers' deviance to changes in participants' (monozygotic [MZ] twins') self-reported delinquency from mid- to late adolescence while controlling for possible gene-environment correlations (rGE) through the use of the…
Descriptors: Peer Influence, Twins, Delinquency, Adolescents
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Guimond, Fanny-Alexandra; Brendgen, Mara; Correia, Stephanie; Turgeon, Lyse; Vitaro, Frank – Developmental Psychology, 2018
This study examined the moderating role of classroom injunctive norms salience regarding social withdrawal and regarding aggression in the longitudinal association between these behaviors and peer victimization. A total of 1,769 fourth through sixth graders (895 girls, M = 10.25 years, SD = 1.03) from 23 schools (67 classrooms) completed a peer…
Descriptors: Correlation, Peer Relationship, Victims, Withdrawal (Psychology)
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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
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Laursen, Brett; Hartl, Amy C.; Vitaro, Frank; Brendgen, Mara; Dionne, Ginette; Boivin, Michel – Developmental Psychology, 2017
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 Study completed inventories describing delinquency and substance use at ages 13, 14, and 15. A 3-wave longitudinal actor-partner…
Descriptors: Substance Abuse, Delinquency, Adolescents, Twins
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Dirghangi, Shrija; Kahn, Gilly; Laursen, Brett; Brendgen, Mara; Vitaro, Frank; Dionne, Ginette; Boivin, Michel – Developmental Psychology, 2015
This study tested 2 related hypotheses. The first holds that high co-rumination anticipates heightened internalizing problems. The second holds that positive relationships with friends exacerbate the risk for internalizing problems arising from co-rumination. A sample of MZ twins followed from birth (194 girls and 170 boys) completed (a)…
Descriptors: Early Adolescents, Friendship, Peer Influence, Anxiety
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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
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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
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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
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Guimond, Fanny-Alexandra; Laursen, Brett; Vitaro, Frank; Brendgen, Mara; Dionne, Ginette; Boivin, Michel – International Journal of Behavioral Development, 2016
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., depressive symptoms and delinquency). A total of 163 monozygotic (MZ) twins pairs (85 female pairs, 78 male pairs) completed…
Descriptors: Genetics, Parent Child Relationship, Mothers, Path Analysis
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Plourde, Vickie; Boivin, Michel; Forget-Dubois, Nadine; Brendgen, Mara; Vitaro, Frank; Marino, Cecilia; Tremblay, Richard T.; Dionne, Ginette – Journal of Child Psychology and Psychiatry, 2015
Background: The phenotypic and genetic associations between decoding skills and ADHD dimensions have been documented but less is known about the association with reading comprehension. The aim of the study is to document the phenotypic and genetic associations between reading comprehension and ADHD dimensions of inattention and…
Descriptors: Genetics, Correlation, Attention Deficit Hyperactivity Disorder, Kindergarten
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Vitaro, Frank; Boivin, Michel; Brendgen, Mara; Girard, Alain; Dionne, Ginette – Journal of Educational Psychology, 2012
The goal of this study was to examine how different types of social experiences in kindergarten relate to Grade 1 academic achievement, while controlling for possible genetic and shared environmental influences through the use of the monozygotic (MZ) twin difference method. Social experiences in kindergarten included relationship quality with the…
Descriptors: Academic Achievement, Parent Child Relationship, Peer Groups, Rejection (Psychology)
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Brendgen, Mara; Lamarche, Veronique; Wanner, Brigitte; Vitaro, Frank – Developmental Psychology, 2010
The present study examined to what extent different types of friendship experiences (i.e., friendlessness, having depressed friends, and having nondepressed friends) are associated with early adolescents' longitudinal trajectories of depressed mood. On the basis of a sample of 201 youths (108 girls, 93 boys), we identified 3 distinct longitudinal…
Descriptors: Early Adolescents, Friendship, Adolescents, Depression (Psychology)
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