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Aggression has been introduced as one of the serious problems in public health. The purpose of this paper is to evaluate the ability of the extended theory of planned behavior (TPB) to predict the physical and verbal aggression behavior.

In this research, 462 teenagers were evaluated through the demographic questionnaire along with the main structures of the TPB as a predictor of behavior. After one month of follow-up, physical and verbal aggression was evaluated. Demographic data were analyzed descriptively by SPSS21 and predictability of the structures for intention and behavior of the physical and verbal aggression was analyzed by AMOS.

Mean and standard deviation of participants’ age were 14.70 and 1.12 years, respectively. In this research, 22.5% of the participants did not show physical aggression over the last one month and 20% of them did not show verbal aggression over the last month. Path analysis revealed that the variables of the TPB predicted 61% and 32% of variance of intention and physical aggression behavior, respectively, while these variables could describe 43% and 22% of the variance of intention and verbal aggression behavior, respectively. All of the concepts could be significant predictors of the behaviors. Subjective norms were the best predictor of the intention for physical and verbal aggression. Intention and perceived behavioral control were good predictors of physical and verbal aggression.

Given the role of subjective norms in intention and also the role of intention and perceived behavioral control of people for aggression, it can be concluded that emphasis on social and psychological education about subjective norms, peer groups and self-control can help reduce this problem.

A few studies have predicted behavior occurrence in the future. Given the lack of focus on the role of constructs that may bring about future behaviors, the current research was conducted to use the structures of the TPB to predict behavioral intention as well as perpetration of physical and verbal aggressive behaviors, independently.

The purpose of this paper is to investigate the developmental trajectory and patterns of physical aggression and relational aggression over time, and also to examine the gender differences of the three-year developmental process as well as the impact of the developmental trajectory on mental health.

Participants: the participants of this study were newly enrolled junior school students. The study spanned three years with continuous tracking performed once every other year. Measures: class play questionnaire. Aggressive behaviors were measured by an adaptive Chinese version of the revised class play assessment. Statistical analysis: to address the questions of the present study, the latent class growth model (LCGM) was used to analyze the three-year longitudinal data by Mplus 6.1.

The initial level of physical aggression in boys was higher than that in girls. There were three types of developmental trajectory for boys, corresponding to a lower initial level-increasing group, a middle initial level-increasing group and a higher initial level-stable group. However, girls demonstrated different patterns, corresponding to a lower initial level-increasing group, a middle initial level-increasing group and a higher initial level-decreasing group. In contrast to the physical aggression, the initial level of relational aggression in boys was lower than that in girls. There were four types of developmental trajectory for boys, corresponding to a lower initial level-increasing group, a middle initial level-increasing group, a middle initial level-declining group and a higher initial level-declining group. Girls illustrated different patterns, corresponding to a lower initial level-stable group, a middle initial level-increasing group and a higher initial level-declining group. Different developmental trajectory of physical and relational aggression would influence the interpersonal relationship.

This paper used a person-centered latent variable approach instead of the variable-centered approach to investigate the developmental trajectory and patterns of physical aggression and relational aggression over three year by employing the LCGM. The initial level of physical aggression in boys was higher than that in girls. In contrast, the initial level of relational aggression in boys was lower than that in girls. There were gender differences in the pattern of physical and relational aggression development trajectory. Different developmental trajectory of physical and relational aggression would influence the interpersonal relationship.

This review aims to examine how aggression is portrayed in the media and how it can influence behavior and attitudes regarding aggression.

The authors reviewed the relevant literature and examined both physical and relational forms of aggression in multiple media forms (television, film, video games, music, books).

Across media types, evidence is found that both physical and relational aggression are portrayed frequently and in ways that may contribute to subsequent aggression. Furthermore, though there are studies finding no effect of exposure to media aggression, evidence is found that watching physical and relational aggression in the media can contribute to aggressive behavior. Prominent media aggression theories are reviewed and some of these theories are applied to relational aggression media effects.

Researchers should no longer ignore relational aggression in terms of the media, in terms of content and associations with aggressive behavior. Researchers should also focus on understudied media forms, such as music and books.

Policy makers should take careful note of the research on media and aggression when deciding on public policy and clinicians should inquire about media habits when clients show problematic aggressive behavior (physical or relational).

This paper is a valuable source of information regarding current research on media and aggression. Unlike other reviews, it focuses on multiple types of aggression (physical and relational) and multiple media types (TV, movies, video games, music, and books).

There is a considerable body of research on the assessment and prediction of aggression in psychiatric hospitals. A range of clinical and demographic characteristics associated with aggressive inpatients, such as young age and active symptoms of psychosis, have repeatedly been shown to contribute to aggression. Environmental factors have also been shown to be important. The study examined aggressive behaviours in an Australian forensic psychiatric hospital, using aggression‐specific recording instrumentation developed for the study. The purpose of the study was to compare results using aggression specific‐recording instrumentation with a previous study using retrospective methods relying on standard hospital incident forms, and to examine the relationship between type, direction and severity of aggression with the use of seclusion.In contrast with the results obtained in a previous study, staff rather than patients were more often the victims of both verbal and physical aggression, although patients were more frequently the victims of more severe forms of aggression. Patients were verbally and physically aggressive towards other patients at similar rates, although they were more frequently verbally, rather than physically, aggressive to staff. Acute wards recorded more aggression than rehabilitation wards. Males and females were aggressive at similar rates. A reduction in reported incidents of verbal and physical aggression, particularly against staff, occurred over the course of the study. Patients were secluded and incident forms were completed following approximately 30% of aggressive behaviours. Whether or not a patient was secluded and whether or not an incident form was completed depended on a range of factors, including the nature of the victim and the type and severity of the aggression.

Distinguishing between physical and social aggression, this study aimed to examine whether the predictive effect of aggression on resource control is moderated by prosocial behavior and corresponds to a linear or a curvilinear trend. Moderating effects of children's social preference among peers and child sex in this context were also tested.

Based on a sample of 682 kindergarten children (348 girls; average age 72.7 months, 3.6 SD), multilevel regressions revealed additive linear effects of social preference and prosociality on resource control.

Moderate (but not high) levels of social aggression also facilitated resource control for disliked children. There was no such threshold effect for well‐liked children, who increasingly controlled the resource the more socially aggressive they were. In contrast, physical aggression hampered resource control unless used very modestly.

The present study has a number of positive features. First, the distinction between physical and social aggression improves our understanding of the relation between aggression and social competence and sketches a more differentiated picture of the role of different forms of aggression in resource control. Second, this study combines the concept of resource control with the concept of social preference and investigates curvilinear effects of aggression. Third, the direct observation of resource control in the Movie Viewer increases the internal validity of this study.

Research showing that women commit high rates of intimate partner violence (IPV) against men has been controversial because IPV is typically framed as caused by the patriarchal construction of society and men's domination over women. Johnson's (1995) typology of common couple violence (CCV) and intimate terrorism (IT) attempted to resolve this controversy, but he maintained that IT was caused by patriarchy and committed almost exclusively by men. This study investigates Johnson's theory as it applies to a sample of 302 men who sustained IPV from their female partners and sought help, and a comparison sample of community men. Results showed that the male helpseekers sample was comprised of victims of IT and that violence by the male victims was part of a pattern of what Johnson labels violent resistance. Men in the community sample who were involved in IPV conformed to Johnson's description of CCV. Results are discussed in terms of research, policy, and practice implications of acknowledging women's use of severe IPV and controlling behaviour against their male partners.

The purpose of this study is to examine the prevalence and association among school refusal behavior, self-esteem, parental school involvement and aggression in punctual and truant school-going adolescents.

A purposive sampling technique and cross-sectional design were used in the current study. Participants comprised three heterogeneous sub-groups: school truant students, park truant students and punctual students.

This study’s findings indicated that father and mother’s school involvement was related to more elevated level of self-esteem for school truant students. Results also indicated that male truant students had more significant probability to school refusal behavior and physical aggression as compared to female truant students. Moreover, results revealed that physical aggression fully mediated among mother’s school involvement, academic self and school refusal behavior in punctual students and school truant students.

There is more need to develop indigenous school-based preventions and interventions aimed at decreasing school truancy in Pakistani context by tackling the predisposing vulnerable factors and supporting and encouraging the protective family and internal factors.

This study was conducted on children and adolescents from the three tribal cultures from Northern Tanzania: the Hadza, the Datoga and the Iraqw. The comparative data on aggression and conflict management skills were measured at Endomaga Boarding School, Lake Eyasi, Mangola in Northern Tanzania, in 2005‐2006. The final sample included 219 children, ranging from 7 to 20 years of age. No sex differences were found in self‐ratings or frequency of occurrence of physical, verbal and indirect aggression in Iraqw children and adolescents, or in self‐ratings in Hadza. Hadza boys reported a higher occurrence of physical and indirect aggression during the previous week compared to girls. No differences between the sexes were found in constructive conflict resolution and third‐party interventions practiced by Iraqw and Datoga children and self‐ratings in Hadza. Hadza boys reported a higher frequency of constructive conflict resolution and third‐party interventions compared to girls. Significant sexual dimorphism on the 2D:4D ratio was found for our African sample. A significant negative correlation between the right hand 2D:4D ratio and ratings on physical aggression was found for the girls. The girls with the lowest finger index estimated themselves as more verbally aggressive, compared to girls with a medium 2D:4D ratio.

This study empirically examined the antecedents of verbal and physical assaults on managers perpetrated by subordinate employees. A model was presented and hypotheses developed that were tested with data obtained through the content analysis of published arbitration decisions. The findings indicated that such assaults were more likely to be verbal than physical, preceded by aversive treatment, and targeted at managers directly involved in the negative outcomes. Additionally, the severity of the incident varied across the different types of triggering events. Individuals who had been aggressive in the past but had not been disciplined were more likely to subsequently engage in physical than verbal assaults. The implications of these findings for future research and organizational practices were also discussed.

The purpose of this study is to examine the occurrence, severity, chronicity, and predictors of inflicted IPV among women visiting the Forensic Services in Maputo city (Mozambique) as victims of IPV by their partner.

The study was cross‐sectional: the data were collected from 1,442 women over 12 months (consecutive cases) and were analysed with bivariate and multivariate methods.

The overall occurrence of inflicted IPV across severity (one or more types) was 69.4 percent (chronicity, mean/SD 44.8±65.8). Psychological aggression was reported by 64 percent of women (chronicity, mean/SD 23.1±32.4); physical assault by 38.2 percent (chronicity, mean/SD 10.3±24.6); sexual coercion by 39.1 percent (chronicity, mean/SD 7.2±16.2); and injuries by 22.6 percent (chronicity, mean/SD 4.2±12.4). Further, 14.5 percent (chronicity, mean/SD 140.2±86.3) of the women used all abuse types against their partners: 18.2 percent (chronicity, mean/SD 113.1±75.9) injury, and psychological and physical abuse; 14.7 percent (chronicity, mean/SD 64.9±64.3) injury, and physical and sexual abuse; 16.3 percent (chronicity, mean/SD 94.1±57.2) injury, and psychological and sexual abuse; and 24.9 percent (chronicity, mean/SD 99.5±72) psychological, physical, and sexual abuse. Controlling behaviours, co‐occurring perpetration, abuse as a child, and certain types of own victimization were the more important factors associated with the inflicted abuse.

More research into women's experiences of IPV as perpetrators, particularly in relation to co‐occurring inflicted abuse, control, and abuse as a child, is warranted in Sub‐Saharan Africa. An important limitation here is the lack of a control group (e.g. general population).

The present findings may be useful for the development of strategies to prevent/treat IPV in Mozambique.

In spite of its limitations, the current study may have provided new insights into women's use of violence against their partners.