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Direct linkLaursen, 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
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
Brouillard, Charlie; Brendgen, Mara; Vitaro, Frank; Dionne, Ginette; Boivin, Michel – Developmental Psychology, 2019
The present study used a genetically informed design of twins raised in the same family (375 monozygotic and 290 dizygotic twins; 50.2% girls) to examine the association between adolescents' genetic risk for depressive symptoms and the course of the parent-child relationship quality throughout adolescence. Depressive symptoms and the quality of…
Descriptors: Depression (Psychology), Conflict, Parent Child Relationship, Mothers
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
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
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
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)
