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Updated: May 12, 2026

The Resident-intruder Paradigm: A Standardized Test for Aggression, Violence and Social Stress
09:12

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Published on: July 4, 2013

["Violence is no solution but a cool alternative?" Why bullies are so effective]

Manuel Stoiber1, Mechthild Schäfer

  • 1Departement Psychologie der Ludwig-Maximilians-Universität München, München.

Praxis Der Kinderpsychologie Und Kinderpsychiatrie
|April 20, 2013
PubMed

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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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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...
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Obedience to authority is classically demonstrated in a more famous series of social psychology experiments performed by Stanley Milgram. He was a social psychology professor at Yale who was influenced by the trial of Adolf Eichmann, a Nazi war criminal. Eichmann’s defense for the atrocities he committed was that he was “just following orders.”
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