Related Experiment Video
Updated: Jul 13, 2026

09:12
The Resident-intruder Paradigm: A Standardized Test for Aggression, Violence and Social Stress
Published on: July 4, 2013
Rethinking Longitudinal Studies of Media Violence and Aggression: A Rejoinder to Lacko et al.'s (2026) Comment
Zhaojun Teng1, Brad J Bushman2
1Faculty of Psychology, Southwest University, Chongqing, China.
Aggressive Behavior
|July 12, 2026
Summary
Future research on media violence and aggression requires better developmental focus, high-quality data, and transparent methods. Understanding when, how, and for whom media violence impacts aggression is crucial for rigorous longitudinal studies.
Area of Science:
- Psychology
- Media Studies
- Developmental Science
Background:
- Longitudinal research on media violence and aggression faces methodological and theoretical challenges.
- A recent exchange with Lacko et al. highlights key areas for improvement in the field.
Purpose of the Study:
- To reflect on broader methodological and theoretical issues in longitudinal research on media violence and aggression.
- To outline five key lessons for enhancing future research in this area.
Main Methods:
- The study is a commentary and reflection based on an exchange with other researchers.
- It synthesizes points for improving the rigor of longitudinal studies on media violence and aggression.
Main Results:
- Five critical lessons for future research were identified:
- 1. Emphasize developmental processes.
- 2. Focus on analytical approaches and interpretation.
- 3. Utilize high-quality longitudinal data.
- 4. Promote transparency in data and methods.
- 5. Investigate the moderators and mediators of the media violence-aggression link.
Conclusions:
- Implementing these lessons will lead to more rigorous longitudinal research.
- A deeper understanding of the developmental processes linking media violence and aggression is achievable.
Related Concept Videos
Longitudinal Research
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...
Longitudinal Studies
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...
Bias in Epidemiological Studies
Biases can arise at various stages of research, from study design and data collection to analysis and interpretation. Recognizing and addressing these biases is essential to ensure the validity and reliability of epidemiological findings.Broadly speaking, biases in epidemiology fall into three main categories: selection bias, information bias, and confounding. A more detailed description of possible biases is:
Aggression
Humans engage in aggression when they seek to cause harm or pain to another person. Aggression takes two forms depending on one’s motives: hostile or instrumental. Hostile aggression is motivated by feelings of anger with intent to cause pain; a fight in a bar with a stranger is an example of hostile aggression. In contrast, instrumental aggression is motivated by achieving a goal and does not necessarily involve intent to cause pain (Berkowitz, 1993); a contract killer who murders for hire...
Relationship Formation
What do you think is the single most influential factor in determining with whom you become friends and whom you form romantic relationships? You might be surprised to learn that the answer is simple: the people with whom you have the most contact. This most important factor is proximity. You are more likely to be friends with people you have regular contact with. For example, there are decades of research that shows that you are more likely to become friends with people who live in your dorm,...
Archival Research
Some researchers gain access to large amounts of data without interacting with a single research participant. Instead, they use existing records to answer various research questions. This type of research approach is known as archival research. Archival research relies on looking at past records or data sets to look for interesting patterns or relationships. For example, a researcher might access the academic records of all individuals who enrolled in college within the past ten years and...

