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Aggress Behav 2019 Feb 2. Epub 2019 Feb 2.

Max-Planck-Institute for Evolutionary Anthropology, Leipzig, Germany.

The selective advantage of male infanticide is enhancement of reproductive success of the aggressor. This implies that aggression is directed at individuals sired by others, infant loss shortens the mother's inter-birth interval, and the aggressor has a greater likelihood of siring the next offspring of the victims' mother. As these conditions are not always met, the occurrence of male infanticide is expected to vary, and hominoid primates offer an interesting example of variation in male infanticide. Read More

Aggress Behav 2019 Feb 2. Epub 2019 Feb 2.

School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, Texas.

A number of studies suggest that adolescents who view relational aggression on television are more likely to engage in higher levels of subsequent relational aggression in social interactions. This study examined longitudinal associations between viewing relational aggression on television and relationally aggressive behavior in text messaging over a 1-year period during adolescence. Participants were 197 adolescents who completed a number of questionnaires regarding media use and aggression. Read More

Aggress Behav 2019 Feb 1. Epub 2019 Feb 1.

Behavioural Science Institute, Radboud University, Nijmegen, The Netherlands.

This study examines why the lower likeability of bullying perpetrators does not deter them from engaging in bullying behavior, by testing three hypotheses: (a) bullying perpetrators are unaware that they are disliked, (b) they value popularity more than they value likeability, (c) they think that they have nothing to lose in terms of likeability, as they believe that their targets and other classmates would dislike them anyway, regardless of their behavior. The first two hypotheses were examined in Study 1 (1,035 Dutch adolescents, M  = 14.15) and the third hypothesis was examined in Study 2 (601 Dutch adolescents, M  = 12. Read More

Aggress Behav 2019 Mar 12;45(2):224. Epub 2019 Jan 12.

Aggress Behav 2019 Jan 31. Epub 2019 Jan 31.

Department of Forensic Psychiatry and Psychotherapy at the District Hospital at Günzburg, University of Ulm, Ulm, Germany.

This study examined whether the associations between self-aggression and different forms of externalized aggression (reactive and spontaneous aggression) are influenced by self-esteem and current psychopathological symptoms. For this purpose, we asked 681 participants from the general population (GP) and 282 general psychiatric patients (PPs) to answer the German versions of the Short Questionnaire for Assessing Factors of Aggression (K-FAF), the Multidimensional Self-Esteem Scale (MSWS), and the Brief Symptom Inventory 25 Forensic (BSI-25-F). Statistically, we performed descriptive and mediation analyses. Read More

Aggress Behav 2019 Jan 30. Epub 2019 Jan 30.

Departments of Psychiatry and Psychology, Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, Virginia.

Psychopathy is a multifaceted construct that has been linked to aggression. Yet, few studies have explored the association between physical, verbal, and indirect aggression using the 4-facet model of psychopathy in community samples, and to date, no studies exist that test for male and female differences. The present study aimed to understand what facets of psychopathy predict aggressive behavior for men and women, while controlling for important risk factors, such as Antisocial Personality Disorder (ASPD). Read More

Aggress Behav 2019 Jan 30. Epub 2019 Jan 30.

Laboratory of NeuroGenetics, Department of Psychology and Neuroscience, Duke University, Durham, North Carolina.

Amongst a number of negative life sequelae associated with childhood adversity is the later expression of a higher dispositional tendency to experience anger and frustration to a wide range of situations (i.e., trait anger). Read More

Aggress Behav 2019 Jan 30. Epub 2019 Jan 30.

Institute of Delinquency and Crime Prevention, ZHAW Zurich University of Applied Sciences, Zurich, Switzerland.

Relying on an importation and deprivation framework, the study assessed a variety of risk factors associated with self-reported teacher-targeted aggression among ninth grade students (n = 5,673). Using a cross-sectional school survey conducted in one German federal state, two forms of teacher-targeted aggression were assessed: verbal (insulting, threatening, and mocking) and physical (beating and pushing) aggression. Every ninth student reported verbal aggression, while 0. Read More

Aggress Behav 2019 Jan 30. Epub 2019 Jan 30.

Public Health Department, NORC at the University of Chicago, Bethesda, Maryland.

Despite extensive research regarding patterns and outcomes of victimization in dating relationships, there has been limited investigation of the developmental profiles of the perpetration of adolescent dating abuse (ADA). We estimated longitudinal latent growth models of ADA perpetration in a sample of 2,269 U.S. Read More

Aggress Behav 2019 Jan 29. Epub 2019 Jan 29.

Universidad Autónoma de Madrid, Madrid, Spain.

Research on aggression has benefitted from using individual-difference measures to predict aggressive behavior. Research on meta-cognition has recently identified that the predictive utility of individual-difference inventories can be improved by considering the certainty with which people hold their self-views. Merging these two frameworks, the present research examines whether assessing certainty in trait aggressiveness improves its ability to predict aggressive outcomes. Read More

Aggress Behav 2019 Jan 28. Epub 2019 Jan 28.

Palestinian Center for Policy and Survey Research, Ramallah, Israel.

We examine whether cumulative-past and concurrent exposure to ethnic-political violence among Israeli and Palestinian youth predict serious violent behavior and antisocial outcomes toward the in-group and the out-group. We collected four waves of data from 162 Israeli Jewish and 400 Palestinian youths (three age cohorts: 8, 11, and 14 years old) and their parents. The first three waves were consecutive annual assessments, and the fourth was conducted 4 years after the third wave, when the three age cohorts were 14, 17, and 20 years old, respectively. Read More

Aggress Behav 2019 Jan 24. Epub 2019 Jan 24.

University of Groningen, Groningen, The Netherlands.

This study investigated if and how children and teachers differ in their assessment of victim-aggressor relationships in kindergartens. Self-, peer, and teacher reports of victimization-aggression networks (who is victimized by whom) were investigated in 25 Swiss kindergartens with 402 5- to 7-years-old. It was examined whether child characteristics (sex and parent-reported internalizing and externalizing behavior) influence informant reports of victimization and/or aggression. Read More

Aggress Behav 2019 Jan 12. Epub 2019 Jan 12.

Department of Psychology, University of British Columbia, Vancouver, Canada.

The goal of this study was to examine the ways attentional bias to social threat-measured across multiple attentional processes-is related to both child aggression and a well-established cognitive correlate of aggression (namely, hostile intent attributions). A community sample of 211 children (51% male; 9-12 years; 55% Caucasian) participated in our cross-sectional correlational design. Social threat attentional bias was measured through task performance on dot-probe, attentional shifting, and temporal order judgment tasks; each task measured different attentional processes. Read More

Aggress Behav 2019 Jan 7. Epub 2019 Jan 7.

Kansas State University, Manhattan, Kansas.

We examined the effect of masculine honor beliefs on perceptions of unfair fighting behavior. We proposed competing hypotheses about the nature of this relationship. Our Reputation by Any Means Hypothesis predicted masculine honor beliefs would be positively related to perceptions of unfair fighting behavior as permissible because they increase the likelihood of success. Read More

Aggress Behav 2019 Mar 4;45(2):214-223. Epub 2019 Jan 4.

Psychology & Neuroscience of Cognition Research Unit, Université de Liège, Liège, Belgium.

Negative consequences of video games have been a concern since their inception. However, one under-researched area is the potential negative effects of sexualized video game content on players. This study analyzed the consequences of sexualized video game content on online sexual harassment against male and female targets. Read More

Aggress Behav 2019 Mar 30;45(2):193-205. Epub 2018 Dec 30.

Psychology Department, Brock University, Ontario, Canada.

Few studies have experimentally manipulated sleep to study its effect on aggressive behavior. The current study examined how reactive aggression was affected by having sleep restricted to 4-hours on a single night, a level of disruption commonly experienced. Both rested and sleep-restricted participants completed the Point Subtraction Aggression Paradigm (PSAP), a laboratory task in which participants seek to earn points, are provoked by a fictitious opponent stealing their points, and may choose to steal points in response. Read More

Aggress Behav 2019 Mar 26;45(2):206-213. Epub 2018 Dec 26.

Institut für Psychologie, Universität Innsbruck, Innsbruck, Austria.

The present research tested the hypothesis that everyday sadists show a distinct preference for violent video games and examined the relationship between everyday sadism and participant's mood after violent video game play. In Study 1, participants watched three trailers for video games that differed in their level of violent content. Whereas everyday sadists were attracted to a violent video game, there was no significant positive association between everyday sadism and attraction to the nonviolent video games. Read More

Aggress Behav 2019 Mar 21;45(2):181-192. Epub 2018 Dec 21.

University of Southern California, Suzanne Dworak-Peck School of Social Work, Department of Children, Youth, and Families, USC Center for Artificial Intelligence in Society, Los Angeles, California.

Adolescents engage in bullying and sexual harassment perpetration both in-person and online. Yet, little is known about the overlap of traditional (in-person) and cyber bullying and sexual harassment perpetration. The present study assessed the co-occurrence of these forms of aggression in high school and identified middle school predictors based on participants' perceptions of factors across the social ecology. Read More

Aggress Behav 2019 Mar 21;45(2):161-168. Epub 2018 Dec 21.

Tactical Decision Making Research Group, Department of Psychological Sciences, University of Liverpool, Liverpool, United Kingdom.

The current study aims to investigate corresponding self-control and self-control failures that are the result of ego depletion and its impact on police officers' decision to use force. For that purpose, a total of 200 German police recruits were randomly assigned to either an experimental or control group. Ego depletion was manipulated using the "e" crossing task. Read More

Aggress Behav 2019 Mar 18;45(2):169-180. Epub 2018 Dec 18.

Alberti Center for Bullying Abuse Prevention, Department of Counseling, School, and Educational Psychology, University at Buffalo, The State University of New York, Buffalo, New York.

The goal of this study is to examine individual-level and school-level predictors of teacher victimization (TV) by students in China based upon the multilevel social-ecological framework. A sample of 1711 teachers (7-12th grade) from 58 schools from eight provinces in mainland China completed measures of teacher victimization (i.e. Read More

Aggress Behav 2019 Jan;45(1)

Aggress Behav 2019 Mar 5;45(2):139-150. Epub 2018 Dec 5.

Department of Psychology, University of Victoria, Victoria, Canada.

A key criticism of research on intimate partner violence (IPV) is that a sole focus on physical or psychological acts of aggression fails to account for other forms of manipulative behavior that may have serious consequences for partner and family functioning. The current study examines coercive control, or behavior designed to constrain or compel an intimate partner in some way, in a longitudinal community sample of 98 heterosexual couples assessed in the third trimester of pregnancy as well as at 1 and 2 years postpartum. We found that the majority of couples reported at least some coercive controlling behavior during the transition to parenthood, that coercive control was highly bi-directional between partners, and that women were more likely than men to engage in coercive control before parenthood. Read More

Aggress Behav 2019 Mar 5;45(2):151-160. Epub 2018 Dec 5.

Department of Psychology, Georgia State University, Atlanta, Georgia.

Research has implicated biased attention allocation toward emotional cues as a proximal mechanism in the association between trait disinhibition and physical aggression. The current study tested this putative cognitive mechanism by incentivizing a shift of attention from a provoking stimulus to a neutral stimulus during a laboratory aggression paradigm. Participants were 119 undergraduate men. Read More

Aggress Behav 2019 Mar 25;45(2):129-138. Epub 2018 Nov 25.

Department of Psychobiology, University of Valencia, Valencia, Spain.

It has been stated that Attention deficit hyperactivity disorder (ADHD) increases the likelihood of risky behavior such as intimate partner violence (IPV), but the cognitive mechanisms that facilitate or underlie these types of behavior remain unexplained. In this regard, several authors have established that impulsivity and inattentive symptoms might affect basic processes such as emotional decoding and set-shifting abilities, which are important processes for emotional and behavioral regulation. Hence, these symptoms entail a reduction in sensitivity to key contextual stimuli. Read More

Aggress Behav 2019 Jan 26;45(1):93-102. Epub 2018 Oct 26.

Department of Psychology, Virginia Commonwealth University, Richmond, Virginia.

Aggression is prevalent in early- to mid-adolescence and is associated with physical health and psychosocial adjustment difficulties. This underscores the need to identify risk processes that lead to externalizing outcomes. This study examined the extent to which the effects of three dimensions of beliefs supporting aggression on physical aggression and externalizing behavior are mediated by anger dysregulation and callous-unemotional (CU) traits. Read More

Aggress Behav 2019 Mar 14;45(2):120-128. Epub 2018 Oct 14.

Department of Behavioural Ecology, University of Göttingen, Göttingen, Niedersachsen, Germany.

Human aggression can be differentiated into reactive aggression (RA), displayed in face of a real or perceived threat and associated with high levels of anxiety, and proactive aggression (PA), displayed to achieve a certain goal and linked to lower anxiety levels. To study the origins of these aggression subtypes and their relation to anxiety, we tested if both subtypes can be distinguished in a nonhuman primate species, characterized their occurrence within the study group, and examined the link between aggression subtype and anxiety. Data were collected on 29 individuals of a semi-free ranging group of Barbary macaques (Macaca sylvanus) at Affenberg Salem, Germany, via focal animal (303 hr) and event sampling (1,222 agonistic events). Read More

Aggress Behav 2018 Nov;44(6):658

Aggress Behav 2019 Jan 3;45(1):82-92. Epub 2018 Oct 3.

Postgraduate Programme in Epidemiology, Federal University of Pelotas, Pelotas, RS, Brazil.

A great deal of research shows that adolescent and adult males are more likely to engage in physical aggression and violence than females are. However, few studies have examined cross-cultural variation in sex differences, particularly among low- and middle-income countries [LMICs]. Based on social role and sexual selection theories, we derived two hypotheses regarding possible variations in sex differences across societal contexts: 1) sex differences increase with societal gender polarization (social role theory) and 2) sex differences are exacerbated in societies where socio-economic opportunities are scarce, unequal, or insecure (prediction derived from sexual selection theory). Read More

Aggress Behav 2019 Jan 25;45(1):62-69. Epub 2018 Sep 25.

Programa de Pós-Graduação em Biodiversidade e Biotecnologia-Rede BIONORTE, Marabá, Pará, Brazil.

Zebrafish have been introduced as a model organism in behavioral neuroscience and biological psychiatry, increasing the breadth of findings using fish to study the neurobiology of aggression. Phenotypic differences between leopard and longfin zebrafish were exploited in order to elucidate the role of phasic serotonin in aggressive displays on this species. The present study, revealed differences in aggressive display between leopard and longfin zebrafish, and a discrepant effect of acute fluoxetine in both populations. Read More

Aggress Behav 2019 Jan 23;45(1):52-61. Epub 2018 Sep 23.

Åbo Akademi University, Vasa, Finland.

Sex differences in the perpetration and victimization of low intensity intimate partner aggression (IPA) were investigated in Ghana. The sample consisted of 1,204 adults (mean age 44.1 yrs. Read More

Aggress Behav 2019 Jan 23;45(1):70-81. Epub 2018 Sep 23.

Annenberg Public Policy Center, University of Pennsylvania, Philadelphia, Pennsylvania.

Media violence exposure (MVE) is associated with aggressive outcomes in adolescents. However, based on the differential susceptibility hypothesis, this risk is expected to vary based on the individual's unique risk and protective factors. Using survey data from 1,990 adolescents (Mean age = 15. Read More

Aggress Behav 2019 Jan 21;45(1):42-51. Epub 2018 Sep 21.

Department of Psychology, Georgia State University, Atlanta, Georgia.

The present study utilized a laboratory paradigm to examine the extent to which bystander behavior for sexual aggression is independently and jointly influenced by situational misogynistic peer norms and men's adherence to hegemonic male norms. Participants were a racially diverse college sample of self-identified heterosexual men (N = 104) between the ages of 18-35. Men completed a measure of hegemonic masculinity and engaged in a laboratory paradigm in which they and three male confederates watched a female confederate, who reported a strong dislike of sexual content in the media, view a sexually explicit film which they could stop at any time. Read More

Aggress Behav 2019 Jan 19;45(1):18-32. Epub 2018 Sep 19.

University of Warwick, Department of Psychology, Coventry, United Kingdom.

Emerging evidence suggests that sibling aggression is associated with the development of high-risk behavior. This study investigated the relationship between sibling bullying perpetration and victimization in early adolescence and high-risk behavior in early adulthood. Sibling bullying was assessed at 12 years in 6,988 individuals from the Avon Longitudinal Study of Parents and Children, a birth cohort based in the UK and high-risk behavioral outcomes were assessed at 18-20 years. Read More

Aggress Behav 2019 Jan 17;45(1):33-41. Epub 2018 Sep 17.

School of Communication, The Ohio State University, Columbus, Ohio.

When shooting a gun at a human target, firearms training instructors teach individuals to shoot for the upper torso because it is the largest lethal target on the human body. In contrast, violent first-person shooter (FPS) video games reward players for headshots. The head is the smallest lethal target, and requires careful aim to hit. Read More

Aggress Behav 2019 Jan 10;45(1):6-17. Epub 2018 Sep 10.

Department and Graduate Institute of Criminology, National Chung Cheng University, Chiayi, Taiwan.

Inhibitory control and the effects of negative emotional feedback were investigated in adolescents with a history of violent behavior and normal adolescents using the Taylor Aggression Paradigm (TAP), a task simulating real situations of social interaction to elicit aggressive behavior and negative emotions, with concurrent event related potential recordings. The Reactive Proactive Aggression Questionnaire (RPAQ), the Barratt Impulsiveness Scale (BIS) and the Negative Mood Regulation (NMR) Scale were also presented. These showed that reactive scores, proactive scores, and BIS scores were all significantly higher for the violent offender group whereas scores from the NMR scale were significantly lower for this group. Read More

Aggress Behav 2019 Mar 28;45(2):107-119. Epub 2018 Aug 28.

Pontificia Universidad Católica de Valparaíso and Center for Research in Inclusive Education, Valparaiso, Chile.

Although in recent years there has been a growing interest in victimization of teachers by their students (student-to-teacher victimization), it is not discussed in relation to students' victimization by their teachers (teacher-to-student victimization) across cultures. This study used a cross-cultural comparative design to examine the prevalence of students' reports of student-to-teacher and teacher-to-student victimization and the correlations between them, both at the student and the school levels. It compares the patterns of findings among Jewish and Arab students in Israel and a sample of Chilean students. Read More

Aggress Behav 2018 Nov 28;44(6):647-657. Epub 2018 Aug 28.

Occupational and Organizational Psychology and Professional Learning, KU Leuven, Leuven, Belgium.

Research on cyberbullying has boomed in the past two decades. Findings from studies among adolescents suggest that they can be classified into distinct groups based on their cyberbullying experience, and that cyberbullying seems to be related to poor emotion regulation. So far, only a few studies have examined cyberbullying among adult workers and it is unclear whether cyberbullying develops similarly in that population. Read More

Aggress Behav 2018 Nov 23;44(6):624-637. Epub 2018 Aug 23.

Department of Neurology, University of Lübeck, Lübeck, Germany.

Implicit measures of aggressiveness are able to circumvent response biases that plague self-reports, but it is unclear how they link to neural activation during aggressive interactions and to aggression-related endocrine function. Here, we tested whether an implicit attentional bias toward antisocial semantic information was associated with endogenous testosterone (T) and cortisol (C) levels, as well as with aggressive behavior and amygdala reactivity to angry faces in a separate competitive paradigm. On Day one, participants (39 healthy young women) completed an emotional word Stroop task in which they had to indicate the font color of antisocial, prosocial, or neutral words. Read More

Aggress Behav 2018 Nov 22;44(6):638-646. Epub 2018 Aug 22.

Faculty of Psychology, Department of Basic Psychology, University of Málaga, Málaga, Spain.

The General Aggression Model (GAM) offers an integrative explanation of the aggressive behavior based on three stages: 1) inputs: personal and situational factors; 2) routes or individual internal states: affect, cognition, and arousal; and 3) outcomes: decision processes with a (non) aggressive result. Researchers are interested in looking for protective factors within the GAM to diminish aggression. Previous studies have found two relevant variables acting independently as risk and protective factors: emotional intelligence (EI) and negative affect (NA). Read More

Aggress Behav 2018 Nov 12;44(6):614-623. Epub 2018 Aug 12.

BioAssessment, Elkton, Maryland.

The goal of the current study was to examine the link between children's psychophysiology and aggression when both constructs were assessed simultaneously in scenarios designed to provide the opportunity to aggress for either a reactive reason or a proactive reason. Both sympathetic nervous system (SNS) activity (skin conductance) and parasympathetic nervous system (PNS) activity (respiratory sinus arrhythmia or RSA), as well as their interaction, were included as physiological measures. Participants were 35 5th-grade children who were placed in two virtual-peer scenarios; one scenario provided the opportunity to aggress in response to peer provocation (i. Read More

Aggress Behav 2018 Nov 5;44(6):601-613. Epub 2018 Aug 5.

Department of Sociology, Western Michigan University, Kalamazoo, Michigan.

We compared the characteristics of homicide in San Francisco during the Gold Rush epidemic (1849-1860) to the characteristics of homicides during a more recent epidemic (1965-1980), and during a period when the homicide rates were relatively low (1921-1964). The data were based on reports from coroners, newspapers, the San Francisco Police Department, and the census. Time period was used to predict the characteristics of each incident in our multivariate analyses. Read More

Aggress Behav 2018 Nov 2;44(6):591-600. Epub 2018 Aug 2.

LMU Munich, Department of Psychology, Munich, Germany.

Research has found that moral competence is negatively associated with bullying behavior in schools, but the drivers of this association are not yet well understood. In this paper, we report on two studies which suggest that moral competence acts as a moderator of peer influence in the context of school bullying. Data were collected at two time points in three German higher secondary schools (grades 7-10, average age at measurement: 14. Read More

Aggress Behav 2018 Jul 24. Epub 2018 Jul 24.

Department of Psychology, The University of Alabama, Tuscaloosa, Alabama.

Research has consistently supported autonomic nervous system (ANS) functioning as a predictor of aggressive behavior in youth. Several studies have further examined how the functioning of the sympathetic (SNS) and parasympathetic (PNS) branches of the ANS interact with environmental factors to predict behavioral outcomes. One factor that has yet to be studied in this context however, is parenting practices. Read More

Aggress Behav 2018 Nov 24;44(6):581-590. Epub 2018 Jul 24.

Department of Psychology, Temple University, Philadelphia, Pennsylvania.

We examined the lifetime prevalence of anxiety disorders (ADs) among adolescents with lifetime intermittent explosive disorder (IED), as well as the impact of co-occurring ADs on anger attack frequency and persistence, additional comorbidity, impairment, and treatment utilization among adolescents with IED. IED was defined by the occurrence of at least three anger attacks that were disproportionate to the provocation within a single year. Data were drawn from the National Comorbidity Survey-Adolescent Supplement (N = 6,140), and diagnoses were based on structured lay-administered interviews. Read More

Aggress Behav 2018 Jul 5. Epub 2018 Jul 5.

Department of Psychology, Wayne State University, Woodward, Detroit, Michigan.

Perpetrators of sexual assault are often intoxicated; however, few experimental studies evaluate alcohol's "in the moment" effects on sexual aggression. This study extends past theory and research by examining the acute effects of alcohol on men's decisions about how to respond to sexual refusals in a dating simulation. Men (N = 62) ages 21-29 were randomly assigned to consume alcohol (target breath alcohol level 0. Read More

Aggress Behav 2018 Nov 29;44(6):561-570. Epub 2018 Jun 29.

Department of Psychology, Babeʂ-Bolyai University, Cluj-Napoca, Romania.

The association between parental and peer attachment and youths' bullying involvement is well documented. However, there is little research examining mechanisms linking the quality of relationships with parents and peers to bullying perpetration and victimization. The present study investigated the indirect effects of attachment to the mother, the father, and peers on bullying and victimization through children's negative automatic thoughts in a sample of 476 adolescents (10-17 years). Read More

Aggress Behav 2018 Nov 29;44(6):571-580. Epub 2018 Jun 29.

Department of Psychological and Brain Sciences, University of Massachusetts Amherst, Amherst, Massachusetts.

There is very little research on the dynamics of peer groups in schools and aggressive behavior among Chinese youth. In the present study, we investigated the link between pure indegree centrality and aggression (i.e. Read More

Aggress Behav 2018 Nov 29;44(6):553-560. Epub 2018 Jun 29.

Department of Psychology, Trinity Western University, Langley, BC, Canada.

Both facial width-to-height ratio (fWHR) and body mass index (BMI) have been associated with aggressive behavior in women but how they influence perception of their potential threat remain unclear. Here, we assessed the effects of fWHR and BMI on perceived formidability from faces of 42 female Ultimate Fighting Championship (UFC) fighters. In study 1, BMI, but not fWHR, positively predicted participants' ratings of aggressiveness and fighting ability from facial photographs. Read More

Aggress Behav 2018 Jun 29. Epub 2018 Jun 29.

Telethon Kids Institute, University of Western Australia, Perth, Australia.

The role of reactive and proactive aggression in school bullying perpetration remains unclear. In this study, we explore the predictive value of an expanded model of aggression motives based on the Quadripartite Violence Typology (QVT), which distinguishes between motivational valence (appetitive or aversive) and recruitment of deliberative self-control to derive four classes of motives: Rage, Revenge, Reward, and Recreation. With a sample of 1,802 students from grades 7-9, we assessed aggression motives via self-report, along with self-report of bullying perpetration and victimization, which were used to assign students into categories of Pure Bully, Bully/Victim (B/V), Pure Victim, and Uninvolved. Read More

Aggress Behav 2018 Jul;44(4):331-336

Center for Innovative Public Health Research, San Clemente, California.