NotesFAQContact Us
Collection
Advanced
Search Tips
Audience
Laws, Policies, & Programs
What Works Clearinghouse Rating
Showing all 15 results Save | Export
Peer reviewed Peer reviewed
Direct linkDirect link
Mimeau, Catherine; Dionne, Ginette; Feng, Bei; Brendgen, Mara; Vitaro, Frank; Tremblay, Richard E.; Boivin, Michel – Language Learning and Development, 2018
This twin study examined the genetic and environmental etiology of vocabulary, syntax, and their association in first graders. French-speaking same-sex twins (n = 555) completed two vocabulary tests, and two scores of syntax were calculated from their spontaneous speech at 7 years of age. Multivariate latent factor genetic analyses showed that…
Descriptors: Genetics, Etiology, Vocabulary, Syntax
Peer reviewed Peer reviewed
Direct linkDirect link
Garon-Carrier, Gabrielle; Boivin, Michel; Guay, Frédéric; Kovas, Yulia; Dionne, Ginette; Lemelin, Jean-Pascal; Séguin, Jean R.; Vitaro, Frank; Tremblay, Richard E. – Child Development, 2016
This study examined the associations between intrinsic motivation and achievement in mathematics in a sample of 1,478 Canadian school-age children followed from Grades 1 to 4 (ages 7-10). Children self-reported their intrinsic motivation toward mathematics, whereas achievement was measured through direct assessment of mathematics abilities.…
Descriptors: Motivation, Elementary School Students, Grade 1, Grade 2
Peer reviewed Peer reviewed
Direct linkDirect link
Salvas, Marie-Claude; Vitaro, Frank; Brendgen, Mara; Cantin, Ste´phane – Merrill-Palmer Quarterly: Journal of Developmental Psychology, 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 through experimental manipulations are still needed. The goal of this study was to examine whether an intervention aimed to…
Descriptors: Correlation, Aggression, Friendship, Intervention
Peer reviewed Peer reviewed
Direct linkDirect link
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
Peer reviewed Peer reviewed
Direct linkDirect link
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
Peer reviewed Peer reviewed
Direct linkDirect link
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
Peer reviewed Peer reviewed
Direct linkDirect link
Besnard, Therese; Verlaan, Pierrette; Davidson, Marilyne; Vitaro, Frank; Poulin, Francois; Capuano, France – Early Child Development and Care, 2013
Empirical evidence suggests that children's disruptive behaviour (CDB) and quality of parenting influence one another bidirectionally. However, few studies have considered the separate contribution of the mother--child and father--child relationships to disruptive behaviours within a longitudinal context. Against this background, the reciprocal…
Descriptors: Behavior Problems, Parenting Styles, Parent Child Relationship, Parenting Skills
Peer reviewed Peer reviewed
Direct linkDirect link
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
Peer reviewed Peer reviewed
Direct linkDirect link
Boislard, Marie-Aude P.; Dussault, Frédéric; Brendgen, Mara; Vitaro, Frank – Journal of Early Adolescence, 2013
This study had three goals: (a) assessing the predictive association of externalizing and internalizing behaviors during childhood with sexual onset during early adolescence; (b) examining the interactive link of externalizing and internalizing behaviors with early sexual onset; and (c) investigating the moderating effect of gender in this…
Descriptors: Behavior Problems, Sexuality, Early Adolescents, Predictor Variables
Peer reviewed Peer reviewed
Direct linkDirect link
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)
Peer reviewed Peer reviewed
Direct linkDirect link
Brendgen, Mara; Boivin, Michel; Dionne, Ginette; Barker, Edward D.; Vitaro, Frank; Girard, Alain; Tremblay, Richard; Perusse, Daniel – Child Development, 2011
Aggressive behavior in middle childhood is at least partly explained by genetic factors. Nevertheless, estimations of simple effects ignore possible gene-environment interactions (G x E) or gene-environment correlations (rGE) in the etiology of aggression. The present study aimed to simultaneously test for G x E and rGE processes between…
Descriptors: Aggression, Genetics, Etiology, Grade 1
Peer reviewed Peer reviewed
Direct linkDirect link
Vitaro, Frank; Brendgen, Mara; Boivin, Michel; Cantin, Stephane; Dionne, Ginette; Tremblay, Richard E.; Girard, Alain; Perusse, Daniel – Child Development, 2011
This study used the monozygotic (MZ) twin difference method to examine whether differences in friends' aggression increased the differences in MZ twins' aggression and depressive symptoms from kindergarten to Grade 1 and whether perceived victimization by the friend played a mediating role in this context. Participants were 223 MZ twin pairs.…
Descriptors: Twins, Kindergarten, Grade 1, Gender Differences
Peer reviewed Peer reviewed
Direct linkDirect link
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
Peer reviewed Peer reviewed
Direct linkDirect link
Forget-Dubois, Nadine; Lemelin, Jean-Pascal; Boivin, Michel; Dionne, Ginette; Seguin, Jean R.; Vitaro, Frank; Tremblay, Richard E. – Early Education and Development, 2007
School readiness tests are significant predictors of early school achievement. Measuring school readiness on a large scale would be necessary for the implementation of intervention programs at the community level. However, assessment of school readiness is costly and time consuming. This study assesses the predictive value of a school readiness…
Descriptors: School Readiness, Academic Achievement, Cognitive Tests, Reading Achievement
Peer reviewed Peer reviewed
Direct linkDirect link
De Civita, Mirella; Pagani, Linda S.; Vitaro, Frank; Tremblay, Richard E. – Journal of Early Adolescence, 2007
We examined the influence of income source within the context of persistent poverty on children's disruptive classroom behavior at age 12 and whether these associations were mediated by maternal supervision at ages 10 and 11. Using a subsample (N = 1,112) from the Quebec Longitudinal Study, we coded four economic circumstances indicating…
Descriptors: Children, Mothers, Child Rearing, Behavior Problems