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Aggress Behav 2021 May 5. Epub 2021 May 5.

Department of Psychology, Rutgers University, Newark, New Jersey, USA.

Recent high-profile incidents involving the deadly application of force in the United States sparked worldwide protests and renewed scrutiny of police practices as well as scrutiny of relations between police officers and minoritized communities. In this report, we consider the inappropriate use of force by police from the perspective of behavioral and social science inquiry related to aggression, violence, and intergroup relations. We examine the inappropriate use of force by police in the context of research on modern policing as well as critical race theory and offer five recommendations suggested by contemporary theory and research. Read More

Aggress Behav 2021 Apr 27. Epub 2021 Apr 27.

Jacobs Center for Productive Youth Development, University of Zurich, Zurich, Switzerland.

Violent ideations are increasingly recognized as an important psychological predictor for aggressive and violent behavior. However, little is known about the processes that contribute to violent ideations. This paper examines the extent to which polyvictimization triggers violent ideations in late adolescence and early adulthood, while also adjusting for dispositional and situational factors as well as prior violent ideations. Read More

Aggress Behav 2021 Apr 20. Epub 2021 Apr 20.

Department of Psychology, School of Educational Science, Gannan Normal University, Ganzhou, Jiangxi, China.

Online aggressive behavior (OAB) has received increasing attention in recent years, and that playing online violent video games (OVVG) is an important predictor of OAB. However, little is known of the mediating and moderating mechanisms underlying this relationship. This study aims to investigate (a) the mediating role of anger rumination in the association between OVVG and OAB and (b) the moderating role of self-control in the relationship between anger rumination and OAB. Read More

Aggress Behav 2021 Apr 18. Epub 2021 Apr 18.

Ste-Justine Hospital Research Center, Montreal, Quebec, Canada.

Aggressive behavior is generally detrimental to children's friendships, both in terms of having friends and in terms of keeping friends. Despite this general tendency, many aggressive children have friends and some of these friendships are stable. We examined the moderating role of preference norms in the classroom and child's sex in the association between children's physical and relational aggression and their friendship experiences. Read More

Aggress Behav 2021 Apr 12. Epub 2021 Apr 12.

Division of Violence Prevention, National Center for Injury Prevention and Control, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.

This study identified subgroups of adolescents with distinct patterns of involvement with overt and relational in-person and cyber aggression and victimization. We also assessed subgroup similarities and differences in exposure to adverse childhood experiences (ACEs), exposure to community violence, and trauma symptoms. Using latent class analysis, we identified three subgroups among 265 adolescents (M  = 14. Read More

Aggress Behav 2021 May 9;47(3):379-380. Epub 2021 Jan 9.

Aggress Behav 2021 Apr 1. Epub 2021 Apr 1.

Laboratoire de Psychologie (EA4139), Université de Bordeaux, Bordeaux, France.

More than a decade of research on emotions has demonstrated the role of affect in social judgments. Emotions influence the way individuals make inferences about others' behavior. Building on these previous findings, the present research investigates the effects of anger and sadness on the attribution of intentionality. Read More

Aggress Behav 2021 Mar 17. Epub 2021 Mar 17.

Department of Psychology, University of South Florida, Tampa, Florida, USA.

Literature linking aggressive behavior across internalizing and externalizing disorders support the co-occurrence of aggression and various mental health diagnoses. However, research has yet to examine relationships between aggression and dimensional psychopathology models that cut across diagnostic boundaries (e.g. Read More

Aggress Behav 2021 Mar 14. Epub 2021 Mar 14.

School of Psychology, Fairleigh Dickinson University, Teaneck, New Jersey, USA.

This article focuses on the characteristics of sexually violent men who have not been convicted of a crime. The objective of this study was to test the four key interrelated pillars of the Confluence Model. The first key pillar posits the interaction of Hostile Masculinity and Impersonal Sex as core risk predictors. Read More

Aggress Behav 2021 05 15;47(3):375-378. Epub 2021 Mar 15.

Aggress Behav 2021 Mar 7. Epub 2021 Mar 7.

Natural History Museum, University of Pisa, Calci (Pisa), Italy.

Color polymorphism is genetically controlled, and the process generating and maintaining morphs can affect speciation/extinction rates. Color badges are useful signals in intraspecific communication because they convey information about alternative strategies and can potentially decrease unnecessary conflicts among different color morphs. Competition and aggressive interactions among color morphs can contribute to polymorphism maintenance. Read More

Aggress Behav 2021 05 3;47(3):332-342. Epub 2021 Mar 3.

Universidad de Córdoba, Cordoba, Spain.

Adolescents' involvement in cyberbullying has been a growing public health concern for some time. Cybervictimization and cyberaggression are two phenomena that previous research has often shown to be associated. However, longitudinal research into these associations and also into potential risk factors for these phenomena is less common. Read More

Aggress Behav 2021 05 24;47(3):364-374. Epub 2021 Feb 24.

Department of Social Work, School of Applied Sciences, The University of Mississippi, University Park, Mississippi, USA.

The current study examined and compared the relative influence of ecological factors on youth antisocial behaviors (i.e., aggression and rule-breaking) using longitudinal data while assessing the moderating effect of youth attention-deficit/hyperactivity disorder (ADHD) diagnosis. Read More

Aggress Behav 2021 05 21;47(3):251-259. Epub 2021 Feb 21.

Department of Psychology, University of California, Los Angeles, California, USA.

Although positive parenting behavior is central to efficacious interventions for child conduct problems (CP), studies of youth CP have focused mostly on negative parenting behavior. That is, few studies have examined dimensions of positive parenting behavior (e.g. Read More

Aggress Behav 2021 05 21;47(3):354-363. Epub 2021 Feb 21.

National School of Public Health, Carlos III Institute of Health, Madrid, Spain.

Despite the efforts of recent decades to reduce gender inequality, sexism is still prevalent among adolescents. The objective of this study was to identify the main socioeconomic characteristics, personal experiences, resources, and competencies associated with sexism in a sample of adolescents from different European countries. Baseline data from the Lights4Violence project included 1555 students ages 12-17 from secondary schools in six European countries (Spain, Italy, Romania, United Kingdom, Portugal, and Poland). Read More

Aggress Behav 2021 Feb 15. Epub 2021 Feb 15.

School of Social Work, Saint Louis University, St. Louis, Missouri, USA.

Violent video game playing is a consistent risk factor for aggression, but research on its psychopathology and trait underpinnings are primarily based on community or university student samples, thus the ecological validity to adjudicated and juvenile justice system-involved youth lacks clarity. This is an important void in the literature because relative to youth in the general population, adjudicated and detained youth evince greater psychopathology, more severe delinquency and violence histories, and clinical psychopathic features. Negative binomial regression models using data from 252 youth in residential placements found that several psychopathic features are significantly associated with violent video gaming. Read More

Aggress Behav 2021 05 12;47(3):296-309. Epub 2021 Feb 12.

Waypoint Research Institute, Waypoint Centre for Mental Health Care, Penetanguishene, Ontario, Canada.

Aggression in correctional and psychiatric settings is relatively common and has a negative effect on physical and mental health both among inmates/clients and staff, as well as organizational-level functioning. The aim of the present study was to critically review the evidence on the effectiveness of nutritional supplements in reducing aggression and violence to contribute to a better understanding of options available for managing aggressive behaviors in adults. The EMBASE, MEDLINE, PsycINFO, Cochrane Library, and PubMed databases were searched for effectiveness studies published in English anytime up until March 2020. Read More

Aggress Behav 2021 05 11;47(3):310-319. Epub 2021 Feb 11.

Department of Statistics, National Chengchi University, Taipei, Taiwan.

This study assessed aggression statuses and transitions among children and examined the effects that gender and exposure to online violence can exert on aggression. A sample of 2155 children recruited from 30 primary schools in Taipei, Taiwan completed surveys in both 2015 (5th grade) and 2016 (6th grade). Latent transition analysis (LTA) was performed, and the results identified three latent statuses of aggression: "None," "School aggression," and "Cyber-aggression. Read More

Aggress Behav 2021 Feb 8. Epub 2021 Feb 8.

Institute for Therapy and Health Research, IFT-Nord, Kiel, Schleswig-Holstein, Germany.

This study examined the association between bullying victimization and e-cigarette use. Data from a 2019-2020 German student survey were used (N = 16,476). The target population consisted of students enrolled in grades 5-10, with a mean age of 13. Read More

Aggress Behav 2021 05 25;47(3):284-295. Epub 2021 Jan 25.

Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana, USA.

Sexual aggression (SA) is a serious public-health problem on college campuses, and there is a pressing need for basic research fostering the development of novel prevention strategies. The current study (a) developed measures of protective behavioral strategies (PBS) for sexual aggression (SA) and risky sex (RS); (b) characterized college men's PBS use; and (c) evaluated whether those who reported engaging in SA and RS showed lower PBS use. Undergraduate men from two universities (n = 567) who endorsed sexual attraction toward women completed measures of PBS, SA, RS, rape-supportive and sociosexual attitudes, and alcohol consumption. Read More

Aggress Behav 2021 05 19;47(3):260-266. Epub 2021 Jan 19.

Samurai Labs, Gdynia, Poland.

This article presents a quasi-experimental intervention study designed to reduce the level of verbal aggression on a social networking service (Reddit). The interventions were based on three psychological mechanisms: induction of a descriptive norm, induction of a prescriptive norm, and empathy induction. Each intervention was generated using a communicating bot. Read More

Aggress Behav 2021 05 19;47(3):320-331. Epub 2021 Jan 19.

Educational Studies, Vrije Universiteit Amsterdam, The Netherlands.

Adolescents' involvement in bullying situations is-at least partially-personality trait-activated. Although some studies investigated personality correlates of bullying and being victimized, little is known about personality correlates of bystander responses (i.e. Read More

Aggress Behav 2021 Jan 19. Epub 2021 Jan 19.

Counselling Psychology, Faculty of Education, University of Ottawa, Ottawa, Ontario, Canada.

Although much is known about the development of physical aggression across the lifespan, far less is known about the developmental pattern of indirect aggression from childhood to adulthood. Accordingly, we examined the self-reported use of indirect aggression from age 10 to 22 in a randomly drawn sample of 704 Canadians. A person-centered approach was used to capture intraindividual change and heterogeneity in development. Read More

Aggress Behav 2021 05 30;47(3):267-275. Epub 2020 Dec 30.

Beijing Key Laboratory of Applied Experimental Psychology, National Demonstration Center for Experimental Psychology Education, Faculty of Psychology, Beijing Normal University, Beijing, China.

Considering the high prevalence of aggressive problems found in middle childhood and their negative impacts on children's overall adjustment, it is important to explore factors that may give rise to childhood aggression, as well as the underlying mechanisms involved within the family context. Applying a biopsychosocial approach, the aim of our study was to examine the relations between emotion-related parenting behavior (ERPB, e.g. Read More

Aggress Behav 2021 03 17;47(2):236-246. Epub 2020 Dec 17.

Department of Education and Child Studies, Leiden University, Leiden, The Netherlands.

Past research has shown concurrent associations between adolescent's body mass index (BMI) and classroom bullying victimization experiences. The goal of this three-wave longitudinal study is to examine a transactional model of associations between BMI and bullying victimization among adolescents in India. We investigate concurrent unidirectional and bidirectional relations between BMI and victimization. Read More

Aggress Behav 2021 03 10;47(2):205-214. Epub 2020 Dec 10.

Department of Counseling and Human Development, Faculty of Education, Haifa University, Haifa, Israel.

The study investigated the effects of reappraisal training on aggressive children. A pre-post-follow-up, experimental-control design was used to evaluate the impact of a small-group intervention that offered practice in reappraisal skills to 89 aggressive children (another 60 were wait-listed). Results indicate that treatment children benefitted in these skills more than their peers. Read More

Aggress Behav 2021 03 4;47(2):173-182. Epub 2020 Dec 4.

School of Education and Human Development, University of Virginia, Charlottesville, Virginia, USA.

Social-emotional factors associated with youth aggression have largely been studied in the context of social information-processing models. The ability to accurately encode and appropriately interpret others' emotions has yet to be fully examined in the context of aggressive behavior, particularly during adolescence. Using cross-sectional data from a sample of 282 at-risk early adolescents, the present study examined associations between teacher-reported aggression and youth performance on a task assessing two components of affective theory of mind: emotion recognition and situational attribution. Read More

Aggress Behav 2021 05 2;47(3):276-283. Epub 2020 Dec 2.

Laboratorio de Biología de la Reproducción, UMF, FES Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Edo. de México, Mexico.

Females of many vertebrate species are territorial. However, few studies have been performed on territorial aggression and its hormonal bases in females. The present study determined whether dwarf hamster females (Phodopus campbelli) display territorial aggression and the role that estradiol (E ) and progesterone (P ) play in this behavior. Read More

Aggress Behav 2021 03 26;47(2):194-204. Epub 2020 Nov 26.

Department of Psychology, York University, Toronto, Ontario, Canada.

Youth are sometimes victimized by their friends, but we know little about the nature of these relationships. Taking a dyadic approach, we studied relationships characterized by both friendship and aggression. Participants (952 middle schoolers; 50% female; 44% Latinx) nominated friends and aggressive perpetrators and victims. Read More