Trajectories and predictors of indirect aggression: Results from a nationally representative longitudinal study of Canadian children aged 2-10
Authors: Tracy Vaillancourt, Jessie L. Miller, Joshua Fagbemi, Sylvana Côté, and Richard E. Tremblay
The purposes of this study were to model the development of indirect aggression among a nationally representative sample of 1,401 Canadian children aged 4 at T2, 6 at T3, 8 at T4 and 10 at T5, and to examine predictors of trajectory group membership from T1 (age 2) child, familial, and parenting variables. Using a semi-parametric group-based modeling approach, two distinct trajectories were identified: “increasing users” comprising of 35% of the sample and “stable low users” comprising of 65% of the sample. Using logistic regression analyses to distinguish these two groups, we found that for girls, more frequent, increasing use of indirect aggression was associated with prior prosocial and physically aggressive behavior, low SES and low parental social support at age 2. For boys, increasing use of indirect aggression was associated with prior parenting issues at age 2-inconsistency and less positive parent-child interactions. Although this study provides unique information regarding the early development of indirect aggression and its predictors, more longitudinal research is needed to fully understand its development.
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Tracy Vaillancourt, J. Miller, J. Fagbemi, Sylvana Côté, and Richard E. Tremblay (2007).
What predicts early indirect aggression trajectory group membership? A nationally representative longitudinal study of Canadian children aged 2 to 8
Aggressive Behavior , 13-Jan
K.-H. Lee, Raymond H. Baillargeon, J. K. Vermunt, Hong Xing Wu, and Richard E. Tremblay (2007).
Age differences in the prevalence of physical aggression among 5-11-year-old Canadian boys and girls
Aggressive Behavior , 26-37
Tracy Vaillancourt (2005).
Indirect aggression among humans: Social construct or evolutionary adaptation?
Kristin Cleverley, Peter Szatmari, Tracy Vaillancourt, Michael Boyle, and Ellen Lipman (2012).
Developmental trajectories of physical and indirect aggression from late childhood to adolescence: Sex differences and outcomes in emerging adulthood
Journal of the American Academy of Child and Adolescent Psychiatry , 1037-1051
Sylvana Côté, Tracy Vaillancourt, Edward D. Barker, Daniel Nagin, and Richard E. Tremblay (2007).
The joint development of physical and indirect aggression: Predictors of continuity and change during childhood
Development and Psychopathology , 37-55
Tracy Vaillancourt, Mara Brendgen, Michel Boivin, and Richard E. Tremblay (2003).
A longitudinal confirmatory factor analysis of indirect and physical aggression: Evidence of two factors over time?
Child Development , 1628-1638
Stefania Maggi, Clyde Hertzman, and Tracy Vaillancourt (2007).
Changes in smoking behaviors from late childhood to adolescence: Insights from the Canadian National Longitudinal Survey of Children and Youth
Health Psychology , 232-240