Early co-occurrence of peer victimization and aggression

Area of Science:

• Developmental Psychology
• Childhood Psychopathology
• Peer Relations Research

Background:

• Childhood peer victimization and aggression are significant concerns.
• Understanding the developmental interplay between victimization and aggression is crucial.
• Heterogeneity in these developmental trajectories requires investigation.

Purpose of the Study:

• To examine heterogeneity in the developmental co-occurrence of peer relational and overt victimization with aggression.
• To identify distinct developmental trajectories from ages 4.5 to 10.5 years.
• To explore psychopathology, peer, and social-cognitive predictors of these joint trajectories.

Main Methods:

• Utilized an accelerated longitudinal research design with four cohorts (N=503).
• Collected data across six occasions over 2 years, from kindergarten to Grade 3.
• Employed sequential process latent growth mixture models to identify developmental subgroups.

Main Results:

• Identified four distinct relational trajectories (e.g., co-occurring increasing aggression, high chronic victimization).
• Identified four distinct overt trajectories (e.g., co-occurring decelerating aggression, moderate chronic victimization).
• Co-occurring trajectories linked to psychopathology; chronic victimization linked to internalizing/social-cognitive issues and peer likeability.

Conclusions:

• Childhood peer victimization and aggression exhibit diverse developmental patterns.
• Specific subgroups are associated with distinct psychological and social factors.
• Findings inform targeted interventions for children experiencing peer victimization and aggression.