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Related Concept Videos

Bullying02:04

Bullying

A modern form of aggression is bullying. As you learn in your study of child development, socializing and playing with other children is beneficial for children’s psychological development. However, as you may have experienced as a child, not all play behavior has positive outcomes. Some children are aggressive and want to play roughly. Other children are selfish and do not want to share toys. One form of negative social interactions among children that has become a national concern is bullying.
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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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The significance of social relationships in psychological well-being is a well-established area of inquiry within social psychology. Research consistently demonstrates that the presence of meaningful, supportive relationships enhances emotional health, while the absence or deterioration of such connections can contribute to psychological distress. Relationships serve as a foundation for emotional support, identity, and social belonging, all of which are critical to an individual’s overall...
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Longitudinal studies are also widely used in other medical and social science fields. For instance, in cardiovascular research, they can monitor patients' health over decades to identify risk factors for heart disease, such as high cholesterol or smoking, and evaluate the long-term effectiveness of preventive measures. Similarly, in mental health studies, researchers might follow individuals from adolescence into adulthood to understand the development and progression of conditions like...
Deindividuation00:57

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Deindividuation is a form of social influence on an individual’s behavior such that the individual engages in unusual or non-normal behavior while in a group setting. Why? Because in these group settings, the individual no longer sees themselves as an individual anymore, disinhibiting their behavior and personal restraint.

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Updated: Jun 20, 2026

Loneliness Assuaged: Eye-Tracking an Audience Watching Barrage Videos
06:45

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Published on: May 29, 2020

Does Peer Victimization Predict Loneliness? A Meta-Analysis of Longitudinal Studies.

Xiaowei Chu1,2, Haoyuan Chen3,4

  • 1Zhejiang Philosophy and Social Science Laboratory for the Mental Health and Crisis Intervention of Children and Adolescents, School of Psychology, Zhejiang Normal University, Jinhua, 321004, China. chuqxw@zjnu.edu.cn.

Journal of Youth and Adolescence
|June 19, 2026
PubMed
Summary

Peer victimization has a minimal long-term effect on loneliness in children and adolescents, even after accounting for initial loneliness levels. This suggests interventions may need reevaluation.

Keywords:
LonelinessLongitudinal studyMeta-analysisPeer victimization

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Area of Science:

  • Psychology
  • Developmental Psychology
  • Social Psychology

Background:

  • Peer victimization is a significant concern during childhood and adolescence.
  • The long-term impact of peer victimization on loneliness requires further clarification.
  • Potential moderators of this relationship have not been systematically studied.

Purpose of the Study:

  • To synthesize longitudinal studies via meta-analysis to determine the predictive effect of peer victimization on subsequent loneliness.
  • To examine demographic and methodological factors as moderators of this effect.

Main Methods:

  • Systematic literature search across six major databases.
  • Inclusion of 30 longitudinal studies with 37,952 participants.
  • Multilevel random-effects meta-analysis to assess predictive effects and moderation.

Main Results:

  • A significant zero-order correlation (r = 0.26) was found between peer victimization and loneliness.
  • After controlling for baseline loneliness, the longitudinal predictive effect was trivial (partial r = 0.07).
  • The association weakened with longer time intervals, in European samples, and with peer-nominated measures.

Conclusions:

  • The long-term effect of peer victimization on loneliness appears negligible.
  • Caution is advised when developing targeted intervention strategies for peer victimization and loneliness.
  • Future research should consider moderating factors in understanding this relationship.