Volume 97, Issue 5 pp. 1344-1359
RESEARCH ARTICLE

Peer Influence and Selection Impact on Adolescent Aggression: Exploring Nonaggressive Delinquency, Peer Victimization, and Moral Disengagement

Zhuoran Tu

Zhuoran Tu

Faculty of Psychology, Beijing Normal University, Beijing, China

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Ying Cui

Ying Cui

Faculty of Education, University of Alberta, Edmonton, Alberta, Canada

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Wen Zhang

Wen Zhang

Department of Psychology, University of International Relations, Beijing, China

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Fang Luo

Corresponding Author

Fang Luo

Faculty of Psychology, Beijing Normal University, Beijing, China

Correspondence: Fang Luo ([email protected])

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First published: 28 April 2025

ABSTRACT

Objective

To investigate the effects of nonaggressive delinquency, victimization, and moral disengagement on aggression at both the individual and social influence levels.

Methods

We collected two consecutive rounds of longitudinal data, with a 6-month interval, from seven high schools in the central region of China in 2016, comprising a total of 2406 valid samples. The Stochastic Actor-Oriented Models (SAOMs), a dynamic network analysis method is used explore the effect in individual and social influence levels.

Results

The main findings are as follows: (1) At the individual level, we found that nonaggressive delinquency and moral disengagement were significantly positively associated with proactive aggression, while victimization was significantly related to proactive aggression but not reactive aggression. (2) At the social influence level, our findings highlighted the presence of a selection effect in adolescent friendships. Specifically, adolescents were more likely to form friendships with peers of the same gender, socioeconomic status (SES), and similar levels of nonaggressive delinquency and moral disengagement. (3) Regarding friends' negative behaviors and attitudes, friends' moral disengagement and peer victimization were not significantly associated with individual levels of proactive and reactive aggression. However, friends' nonaggressive delinquency had a significant negative association with adolescents' reactive aggression, while no significant association was found with proactive aggression.

Conclusion

This study used SAOMs to examine how individual and social factors influence adolescent aggression, finding that individual delinquency and moral disengagement significantly associated with aggression. While friends' victimization and moral disengagement had no direct effects, friends' delinquency reduced reactive aggression, and friends' overall aggression increased individual aggression.

Data Availability Statement

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.