The report addresses the topic of aggression in driving, with a consideration of a number of subject areas: theories of aggression; the definition of aggressive behaviour in driving; measurements of aggression; extreme forms of driver aggression; less extreme forms of driver aggression. The report’s conclusions focus on society’s role in aggressive behaviour, strategies for coping with aggressi...

While significant heritability for childhood aggression has been claimed, it is not known whether there are differential genetic and environmental contributions to proactive and reactive forms of aggression in children. This study quantifies genetic and environmental contributions to these two forms of aggression in an ethnically diverse urban sample of 9-10 year old twins (N = 1219), and compa...

The implications of adult relational aggression in adults for personality pathology are poorly understood. We investigated the association between relational aggression and features of DSM-IV personality disorders and psychopathy in a sample of undergraduates (N = 220). In contrast to the childhood literature, we found no significant difference in relational aggression between men and women. Un...

A key problem facing aggression research is how to measure individual differences in aggression accurately and efficiently without sacrificing reliability or validity. Researchers are increasingly demanding brief measures of aggression for use in applied settings, field studies, pretest screening, longitudinal, and daily diary studies. The authors selected the three highest loading items from e...

In the current study, we addressed several issues related to the forms (physical and relational) and functions (reactive and proactive) of aggression in community (n = 307), voluntary residential (n = 1,917) and involuntarily detained (n = 659) adolescents (ages 11 to 19 years). Across samples, boys self-reported more physical aggression and girls reported more relational aggression, with the e...

Research has consistently demonstrated a link between certain personality disorders (PDs) and increased rates of aggression and violence. At present, understanding of the mechanisms that underlie this relationship is limited. This study was designed to examine the contention (Gilbert & Daffern, 2011) that the application of a contemporary psychological aggression theory, the General Aggression ...

The purpose of the current study is to examine the association between self-esteem and the forms and functions of aggression. Research supports the existence of four aggressive subtypes (i.e., reactive overt, reactive relational, proactive overt, and proactive relational), and past research has found associations between aggression and self-esteem. However, past studies have not examined the re...

What determines whether people tolerate partner aggression? This research examined how norms, relationship experiences, and commitment predict personal standards for judging aggressive acts by a partner. Studies 1a and 1b (n = 689) revealed that experiencing aggression in a current relationship and greater commitment predicted greater tolerance for common partner aggression. Study 2 longitudina...

Psychologists have often categorized human aggression as hostile or instrumental. Hostile aggression is "hot," impulsive behavior that is motivated by a desire to hurt someone; instrumental aggression is "cold," premeditated behavior used as a means to some other end. This dichotomy was useful to the early development of aggression theories and continues to capture important features of nonhuma...

Research has shown that ostracism results in aggressive behavior towards the ostracising other, but also causes displaced aggression-aggression directed towards an innocent person. Our study investigated whether displaced aggressive responses to ostracism were increased by three types of aggression proneness (readiness for aggression) based on different mechanisms: emotional-impulsive, habitual...