Related Experiment Video
Updated: Jan 7, 2026

07:15
Author Spotlight: Understanding Adolescent Social Adversity Effects on Neurodevelopment in Mice
Published on: March 15, 2024
2.3K
Multiple Perpetrator Bullying: An Exploration into Risk Factors and Consequences
Marcia Diaz1, Teresa Michelle Encalada2, Jamie L Flexon1
1Florida International University, Miami, USA.
Journal of Interpersonal Violence
|December 12, 2025
Summary
Multiple perpetrator bullying (MPB) affects many children, but this study found no increased harm for victims compared to single-perpetrator incidents. Further research is needed to understand these bullying dynamics.
Area of Science:
- Public Health
- Criminology
- Child Psychology
Background:
- Bullying is a significant public health concern impacting over 20% of US school children.
- Approximately 30% of bullying victims face multiple perpetrators, potentially exacerbating negative outcomes.
- Limited research exists on the specific impact of multiple perpetrator bullying (MPB).
Purpose of the Study:
- To investigate whether multiple perpetrator bullying (MPB) leads to more severe adverse outcomes than single-perpetrator bullying.
- To identify risk factors and victim outcomes associated with MPB.
Main Methods:
- Utilized data from the 2019 National Crime Victimization Survey's School Crime Supplement.
- Employed regression analysis to assess variations in risk factors and adverse outcomes.
- Compared bullying incidents involving multiple perpetrators versus single perpetrators.
Main Results:
- Significant differences were found in victim experiences based on the number of perpetrators.
- Unexpectedly, no increased harms were identified for victims of multiple perpetrator bullying (MPB) compared to single-perpetrator incidents.
- Victim outcomes did not significantly worsen with an increased number of perpetrators.
Conclusions:
- The number of perpetrators in bullying incidents does not appear to amplify negative consequences for victims.
- Findings suggest a need to re-evaluate assumptions about the severity of multiple perpetrator bullying (MPB).
- Implications for public health policy and future research directions are discussed.
Related Concept Videos
Bullying
8.8K
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...
8.8K
Bystander Effect
10.1K
The discussion of bullying highlights the problem of witnesses not intervening to help a victim. This is a common occurrence, as the following well-publicized event demonstrates. In 1964, in Queens, New York, a 19-year-old woman named Kitty Genovese was attacked by a person with a knife near the back entrance to her apartment building and again in the hallway inside her apartment building. When the attack occurred, she screamed for help numerous times and eventually died from her stab wounds.
10.1K
Bulimia Nervosa
633
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
633
Conduct Disorder
439
Conduct disorder is a complex mental health diagnosis characterized by a repetitive and persistent pattern of behavior that violates societal norms, the rights of others, or age-appropriate rules. The diagnostic criteria for conduct disorder require the presence of at least three problematic behaviors within the past 12 months, with at least one occurring in the past six months. These behaviors are grouped into four categories: aggression toward people and animals; destruction of property;...
439
Antisocial Personality Disorder
562
Antisocial personality disorder is a chronic mental health condition characterized by persistent patterns of disregard for the rights and well-being of others. Individuals with antisocial personality disorder exhibit behaviors that include deceitfulness, impulsivity, irresponsibility, aggression, and a profound lack of empathy. These traits often manifest early in life and persist into adulthood, leading to significant personal, social, and legal consequences.
Behavioral Characteristics and...
Behavioral Characteristics and...
562
Fundamental Attribution Error
13.6K
According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
13.6K

