Aggressive children are known to have friends. However, less is known about the impact of aggression on friendship development and how this can differ for overt and relational (i.e., the forms) and instrumental and reactive (i.e., the functions) of aggression. This longitudinal study utilized the forms and functions perspective on aggression to assess social selection and influence in adolescen...

Social aggression is one of the most conspicuous features of animal societies, yet little is known about the causes of individual variation in aggression within social hierarchies. Recent theory suggests that when individuals form queues for breeding, variation in social aggression by non-breeding group members is related to their probability of inheriting breeding status. However, levels of ag...

http://dx.doi.org/10.1016/j.anbehav.2016.10.022 0003-3472/© 2016 The Association for the Study of A Aggression is a prominent behaviour well studied in a large variety of animals, but it has not been well integrated within life history research. To address this shortcoming, we conducted a series of experiments simultaneously quantifying the effects of age and sexual experience on the use of agg...

The frequency of items of indirect, relational, social, verbal, and physical aggression was assessed in the school environment of 422 adolescents, using the Indirect/Social/Relational Aggression scale (ISRA), a measure that combined items from indirect, relational, and social aggression research. We also assessed the perceived harmfulness of each item. Comparing these findings with the occurren...

Background: The term “aggression” refers to forceful behavior, action, or attitude that is expressed physically, verbally, or symbolically. Aggression in the medical environment can have different forms. The interactions between psychiatrists and patients may be one of the reasons for the appearance of symptoms of aggression in the behaviour of the physicians. The main aim of the study was to e...

OBJECTIVE to establish the prevalence and associations of peer aggression as manifested in preschool children, in community-based populations and to study links with DSM-IV externalizing diagnoses. METHOD Subjects were 1104 children, 3-to-5-year-olds attending rural and urban pre-schools classes. Teachers completed the Peer Conflict Scale (PCS) to inform about direct physical and verbal aggre...

War-related trauma exposure has been linked to aggression and enhanced levels of community and family violence, suggesting a cycle of violence. Reactive aggression--an aggressive reaction to a perceived threat--has been associated with posttraumatic stress disorder (PTSD). In contrast, appetitive aggression--a hedonic, intrinsically motivated form of aggression--seems to be negatively related t...

BACKGROUND To analyze, in a multilevel context, the impact of individual-level relationship satisfaction on couples' mean reports of aggression and agreement about acts of physical and psychological aggression. METHODS We conducted a quota sampling method to recruit a community sample of 2.988 heterosexual adult couples from the Region of Madrid (Spain). RESULTS The percentages of intimate ...

OBJECTIVE To determine the extent of aggression directed towards Australian doctors and the implementation of aggression prevention and minimisation strategies in medical workplaces. METHODS Data were obtained from the pilot phase (n=321) of the Medicine in Australia: Balancing Employment and Life survey of the clinical medical workforce in 2010. Descriptive statistics were generated in relat...