Aggression between siblings: Associations with the home environment and peer bullying

Sibling bullying victimization and subjective well-being among children across 13 countries: The mediating roles of perceived social support and the moderating role of uncertainty avoidance culture

BACKGROUND

While sibling bullying victimization has been recognized as a significant factor detrimentally impacting children's subjective well-being, the underlying mechanisms have yet to be fully elucidated.

OBJECTIVE

This study seeks to investigate the potential mediating role of perceived social support, encompassing support from family, friend, teacher, and neighbor, as well as the moderating influence of uncertainty avoidance culture.

PARTICIPANTS AND SETTING

A sample of 19,328 children was obtained from Wave Three of Children's Worlds: International Survey of Children's Well-being in 13 countries.

METHODS

The structural equation model (SEM) was used to investigate the mediating role of perceived social support in the relationship between sibling bullying victimization and children's subjective well-being. The multiple group analysis was carried out to assess the moderating role of uncertainty avoidance culture.

RESULTS

This study reveals a negative association between sibling bullying victimization and children's subjective well-being (β = -0.138, p < 0.001). Perceived support from family, friend, teacher, and neighbor emerges as a mediating mechanism in this relationship. Uncertainty avoidance culture moderates this relationship, and this association is stronger for children raised in a strong uncertainty avoidance culture (β = -0.085, p < 0.001).

CONCLUSIONS

The results of this study contribute to our comprehension of the nexus between sibling bullying victimization and children's subjective well-being. Moreover, this study extends the current body of knowledge by delving into the cultural disparities spanning various countries.

Relative victimization scale: initial development and retrospective reports of the impact on mental health

BACKGROUND

Bullying and victimization have been studied in many contexts and classified as peer victimization in school settings and parental or sibling victimization within family settings. Yet, current research is scarce on whether victimization occurring within family settings is specific to parental or sibling victimization. Thus, the current study aims to develop a scale assessing victimization conducted by relatives and provide support for its psychometric properties.

METHODS

Cross-sectional and longitudinal data were collected from university students (1622 and 1045 students, respectively) and participants responded to questionnaires via an online survey.

RESULTS

EFA and CFA results demonstrated the unidimensionality of the Relative Victimization Scale (RVS) consisting of eight items. In terms of convergent validity, RVS scores were correlated with the scores on parental, sibling, and peer victimization scales and several psychological health outcomes including depression, anxiety, social anxiety, perceived stress, loneliness, negative and positive affect, life satisfaction, and resilience. Moreover, RVS explained a significant amount of variance beyond the contribution of parental, sibling, and peer victimization in those psychological health outcomes for the support of incremental validity.

CONCLUSIONS

The findings of the study indicated the potential utility of the RVS in assessing the experience of relative victimization through offering support for internal consistency reliability and construct, longitudinal predictive, and incremental validity.

Parental non-involvement strategy for handling sibling conflict on social avoidance in migrant children: Chain mediation of sibling conflict and parent-child conflict

In the process of urbanization, the social adaptation of migrant children has become an important issue in their development. This study adopts family systems theory and ecological systems theory to examine the effects of parental non-involvement strategies in handling sibling conflict on migrant children's social avoidance. It also investigates the mediating role of sibling conflict and parent-child conflict. The results of the study, reported by parents of 253 mobile children with siblings, suggest that parental strategies of not intervening in sibling conflict are an important factor influencing the development of social avoidance in mobile children. The Parental strategy of not intervening in sibling conflict had an effect on migrant children's social avoidance through the separate mediating effect of parent-child conflict, and also through the chained mediating effect of sibling conflict and parent-child conflict. The study also found that the separate mediating effect of sibling conflict was not significant. This study contributes to the research on the relationship between parental non-intervention in sibling conflict and migrant children's social avoidance. It also highlights the impact of sibling conflict and parent-child conflict on migrant children's social avoidance by establishing and validating a comprehensive research model. The results of the study can help parents establish close parent-child relationships for migrant children and provide scientific guidance for children to develop positive sibling relationships. This, in turn, can assist migrant children in better adapting to a new social environment.

Characteristics of preschool-age children who engage in problematic sexual behaviors with siblings

BACKGROUND

Problematic sexual behavior (PSB) between siblings can be a form of sibling sexual abuse (SSA). A notable gap in research are studies examining PSB among preschool-age children with siblings.

OBJECTIVE

This study examined the impact of child maltreatment, exposure to family sexuality, and use of coercive sexual behavior on preschool-aged children PSB with siblings and with nonsiblings.

PARTICIPANTS AND SETTING

All 284 children were ages 3-6 years with PSB who had siblings in the home (197 initiated PSB with siblings and 87 initiated PSB with non-siblings).

METHODS

The two groups were compared on types of PSB, use of coercion, child maltreatment history, exposure to family sexuality, and caregiver attitudes. Caregiver report measures were the Child Sexual Behavior Inventory- Third Edition (CSBI-III), the Family Sexuality Index, and intake form on maltreatment experienced (i.e., physical abuse, sexual abuse, emotional abuse, neglect, exposure to domestic violence, caregiver drug use, and failure to protect).

RESULTS

Maltreatment history was significant, t(258) = -3.36, p < .001; sibling initiators were associated with higher rates of sexual and physical abuse, and neglect than non-sibling. Exposure to family sexuality was significant with non-sibling initiators demonstrating greater exposure than the sibling group, t(282) = 2.66, p = .008. There was no significance between groups for types of PSB including use of coercion.

CONCLUSIONS

Results illuminated unique dynamics of PSB with siblings of preschool-aged children. A developmental framework integrating child maltreatment, impulsivity, environmental factors, and capabilities are key considerations for conceptualization, prevention, and response that is distinct from SSA of adolescents.

Sibling bullying reported by emerging adults: Profiling the prevalence, roles, and forms in a cross-country investigation

Prevalence estimates of sibling bullying indicate it occurs more frequently and with more negative consequences than peer bullying, yet many countries do not track or investigate the phenomenon. University students from Argentina, Estonia, and the United States were surveyed to investigate their retrospective experiences involving sibling bullying, how often it occurred, the roles held, and the forms communicated. In the aggregated data, roughly 50 % of the sampled emerging adults (N = 3477) reported experience with sibling bullying, with the dual role of bully-victim being the most frequently reported role held by males and females, with the second role being bully for males and victim for females. Verbal forms of bullying were most frequently reported by males and females, with physical, relational, and technological forms occurring less frequently, indicating the importance of studying the messages conveyed during bullying incidents. Variations between biological sex, bullying role and form were detected that indicate siblings experience bullying in ways that are unique from peer bullying. Country comparisons revealed bullying frequencies varied among males and females, suggesting sibling bullying experiences are likely to be culturally influenced. More research is warranted to examine the negative impact bullying has on sibling psycho-social development and the potential transfer to non-familial relationships and contexts. Discussion of these findings and the implications for academics and practitioners alike is provided.

Sibling effects on problem and prosocial behavior in childhood: Patterns of intrafamilial "contagion" by birth order

We investigated longitudinal relations between siblings' problem and prosocial behavior, measured by the Strengths and Difficulties Questionnaire, among different sibship sizes in the UK's Millennium Cohort Study. We identified 3436 families with two children and 1188 families with three children. All children (cohort members and their older sibling [OS]) had valid data on behavior at two time points (in 2004 and 2006). Using structural equation model, we found that for internalizing and externalizing problems, OSs (MOS1 = 6.3 years, MOS2 = 9.1 years at T1) exerted a dominant effect on younger siblings (Mage = 3.12 years at T1; 49.7% boys) across sibship sizes. For prosocial behavior, there was OS dominance in two-child families and youngest sibling dominance in three-child families.

Systemic effects of the COVID pandemic on rural black American men's interpersonal relationships: A phenomenological examination

The COVID-19 pandemic was a socionatural disaster that unprecedentedly disrupted the daily lives of individuals, families, and communities. Prior research indicates that Black American men living in rural contexts, particularly in Southern parts of the United States of America, were disproportionately affected by the psychological and economic effects of the pandemic. Despite these disparities, few studies have examined the pandemic's impact on rural Black American men's social networks. This study aimed to explore the effects of the COVID-19 pandemic on rural Black American men's interpersonal relationships. Informed by the principles of critical ethnography and guided by van Manen's hermeneutic phenomenology, seventeen men were interviewed using a semi-structured interview protocol. Interviews were transcribed and then analyzed using an iterative thematic reduction process consistent with van Manen's approach. Four themes were generated: Familial Reorganization, Adaptive Fatherhood, Rona Romance, and Essential Community. Participants recounted how the pandemic motivated them to improve their relationships with family members and children but contributed additional stress to their romantic relationships. Participants further recounted how their friendships were the least impacted as they were willing to make exceptions to their normal protective protocols to socialize with close friends. Participants also noted feeling disconnected from their wider community because they could not attend church even though their religious beliefs remained unchanged. Findings highlight the need for scholars, clinicians, and policymakers to consider men's relational health when developing and implementing pandemic recovery efforts, as it can significantly influence their ability to recuperate mentally and physically. Future research should be dedicated to (1) investigating the effects of the COVID-19 pandemic on fathers, as prior research has nearly exclusively focused on mothers' experiences and (2) delineating protective effects of rural Black American men's involvement in the Black Church from their individual spiritualities to gain a more comprehensive understanding of the influence of contextual crisis on their long-term health and wellbeing.

Sibling Violence and Bullying Behaviors in Peers: The Mediational Role of Self-Esteem

In the context of the existing research on families, sibling violence is a less explored area. However, it has seemingly received more attention recently, and it can assume a relevant role in understanding the maladaptive behavior of youngsters and bullying. Additionally, adolescents involved in bullying and self-esteem are associated with disruptive violence inside the family context. This study's sample consisted of 286 students, aged between 12 and 17 years, from both sexes. This study intends to explore the association between sibling violence and bullying behavior in peers and the mediator effect of self-esteem. The measures for data collection were a demographic questionnaire, the Social Exclusion and School Violence Questionnaire, The Revised Conflict Tactics Scales (Portuguese version for siblings), and the Rosenberg Self-Esteem Scale. The results show a negative effect between negotiation in the sibling relationship (victimization) and social exclusion and verbal aggression related to bullying behavior. Self-esteem represents a total and negative mediator in this connection. Our results also show a variety of indirect outcomes amongst the negotiation dimension, psychological aggression and injury between siblings, and the social exclusion and verbal aggression dimensions (on the aggression and victimization scales). The results will be discussed according to the attachment theory but considering the importance of affective bonds with siblings as a predisposing factor to an adaptive development course.

The association between authoritarian parenting style and peer interactions among Chinese children aged 3-6: an analysis of heterogeneity effects

This study explores the effects of authoritarian parenting styles on children's peer interactions, an aspect often overlooked in the existing literature that primarily focuses on family environmental factors. Data was collected through anonymous child-report questionnaires completed by 2,303 parents and teachers of children aged 3-6 years. The findings reveal that (1) authoritarian parenting significantly hinders children's peer interactions; (2) the negative effects of authoritarian parenting differ based on gender, age, and family composition: (a) girls generally exhibit higher peer interactions than boys, with authoritarian parenting having a stronger impact on boys' peer interactions; (b) peer interactions increase significantly with age, and younger children are more susceptible to the negative effects of authoritarian parenting; (c) children with siblings have higher peer interactions, and authoritarian parenting style has a greater influence on their interactions compared to only children. The study discusses potential reasons and provides practical suggestions for families to make informed parenting style choices based on these findings.

Sibling Experiences of Adverse Childhood Experiences: A Scoping Review

Adverse childhood experiences (ACEs) are traumatic events during childhood known to affect health and well-being across the life span. The detrimental impact ACEs have on children and young people is well-established. It is also known that 85 to 90% of children have at least one sibling. Using this as the foundation for our inquiry, the purpose of this scoping review was to understand what we currently know about the experiences of siblings living with ACEs. Sibling relationships are unique, and for some the most enduring of experiences. These relationships can be thought of as bonds held together by love and warmth; however, they can also provide scope for undesirable outcomes, such as escalation of conflicts and animosities. This scoping review was conducted following Arksey and O'Malley's (2005) methodological framework, complemented by the PAGER framework (Bradbury-Jones et al. 2021), offering a structured approach to the review's analysis and reporting through presenting the Patterns, Advances, Gaps, and Evidence for practice and Research. In June 2020, we searched 12 databases, with 11,469 results. Articles were screened for eligibility by the review team leaving a total of 148 articles meeting the inclusion criteria. Included articles highlighted overwhelming evidence of older siblings shielding younger siblings, and the likelihood that when one sibling experiences adversity, other siblings will be experiencing it themselves or vicariously. The implications of this in practice are that support services and statutory bodies need to ensure considerations are given to all siblings when one has presented with experiencing childhood adversity, especially to older siblings who may take far more burden as regards care-giving and protection of younger siblings. Given that more than half of the included articles did not offer any theoretical understanding to sibling experiences of ACEs, this area is of importance for future research. Greater attention is also needed for research exploring different types of sibling relationships (full, step, half), and whether these influence the impact that ACEs have on children and young people.

Factors affecting sibling bullying and its association with self-esteem and depression in middle school students

Sibling bullying is an unwanted aggressive behavior of a sibling that is associated with peer bullying and emotional problems. However, the prevalence of sibling bullying, the factors that affect this condition, and its impact on depression and self-esteem are understudied, especially in Thailand. This study aims to examine the prevalence of sibling bullying, factors that affect sibling bullying, and its association with self-esteem and depression during the pandemic. From January to February 2022, a cross-sectional study was conducted in grades 7-9 (age 12-15 years) who had at least one sibling. Demographic characteristics, sibling bullying, self-esteem, and depression were collected using the revised Olweus bully/victim questionnaire, the Rosenberg self-esteem scale, and Patient Health Questionnaire-9, respectively. Binary logistic regression was analyzed to determine associations between sibling bullying and outcomes. Of 352 participants (30.4% female), 92 (26.1%) were victims and 49 (13.9%) were bullies of sibling bullying in the previous 6 months. Factors associated with an increased risk of being victims included female (OR = 2.46; 95%CI 1.34-4.53), peer victimization (OR = 12.99; 95%CI 5.27-32.04), domestic violence (OR = 4.48; 95%CI 1.68-11.95), and perpetrating sibling bullying (OR = 9.81; 95%CI 4.62-20.81). Factors associated with an increased risk of depression were female (OR = 2.59; 95%CI 1.57-4.26), sibling bullying victimization (OR = 2.08; 95%CI 1.22-3.56), physical abuse (OR = 9.50, 95%CI 1.13-79.71) and domestic violence (OR = 3.44; 95%CI 1.40-8.45).  Conclusion: Sibling bullying was not uncommon in Thai young adolescents and was associated with female, peer bullying, domestic violence, and depression. Such associations should be identified early so preventive measures and management could be properly implemented. What is Known: • Sibling bullying increases the risk for engaging in peer bullying, aggressive behaviors, violence, and emotional difficulties during life course trajectories. • Victims of sibling bullying are at increased risk of depression, anxiety, mental distress, self-harm, and decreased well-being. What is New: • The rate of sibling bullying in Thai middle school students, even during the pandemic, was comparable to previous studies of different cultural backgrounds without the pandemic. • Victims of sibling bullying were associated with female sex, peer victimization, domestic violence, perpetrating sibling bullying, and depression. Perpetrating sibling bullying was also associated with bullies in cyberbullying.

A longitudinal study of sibling bullying and mental health in autistic adolescents: The role of self-esteem

Sibling bullying is associated with poor mental health in autistic adolescents. The reasons for this remain unknown. In the current study, we attempted to replicate the existing findings on the direct associations between sibling bullying and mental health in autistic adolescents and expand knowledge by focusing on the indirect associations through self-esteem. We made use of existing data from the Millennium Cohort Study, a nationally representative UK-based birth cohort study. We fitted a mediation model to longitudinal data from a sample of 416 autistic adolescents aged 11, 14, and 17 years old who had at least one sibling. We found that sibling bullying was prevalent in the lives of autistic adolescents, especially in those who were late-diagnosed, had a shared bedroom, and lived in a low-income household. Additionally, increased sibling bullying in early adolescence was a significant predictor of reduced self-esteem in mid-adolescence; in turn, reduced self-esteem predicted poorer mental health and wellbeing in late adolescence. Our findings indicate that sibling bullying in early adolescence may indirectly lead to poorer mental health and wellbeing in late adolescence through a reduction in self-esteem in mid-adolescence in autistic adolescents. We discuss the implications of these findings further.

Antecedents of sibling aggression and bullying victimization: The parallel and serial contributions of depressive symptoms and substance use

PURPOSE

Sibling aggression has received attention as a common form of family violence. However, further research is needed to elucidate several antecedents of sibling aggression perpetration and bullying victimization, such as substance use and depressive symptoms. Additionally, more studies are needed to identify the mediating paths of depressive symptoms and substance use, which could explain the association between bullying victimization and sibling aggression perpetration on the one hand and the association between sibling aggression victimization and bullying victimization on the other hand, while controlling for exposure to family violence and demographic variables. The current study tested two separate mediational models guided by the displaced aggression theory and self-medication hypothesis.

METHOD

The present study used the Bullying, Sexual, and Dating Violence Trajectories From Early to Late Adolescence in the Midwestern United States, 2007-2013 dataset. The original sample consisted of 1162 middle school students who were initially surveyed and followed into three high schools. For the current study, the first wave was used, which included a sample of 1101 adolescents. Structural equation modeling (SEM) was conducted to first examine whether bullying victimization was associated with sibling aggression perpetration. Then another model was conducted to test whether sibling aggression victimization was associated with bullying victimization.

RESULTS

In the first model, results suggest bullying victimization is positively associated with sibling aggression. Mediation results indicated depressive symptoms and substance use serially mediated the relation between bullying victimization and sibling aggression. In the second model, results suggest that sibling aggression victimization is positively associated with bullying victimization. Parallel mediation results indicated that depressive symptoms alone and not substance use individually explained the association between sibling aggression victimization and bullying victimization. Finally, serial mediation results indicated that depressive symptoms and substance use serially mediate the association between sibling aggression victimization and bullying victimization.

LIMITATIONS

Limitations include self-report measures and cross-sectional design; therefore, we could not estimate casual relationships.

CONCLUSION

The implications of these findings suggest the need for continued attention to school-based bully prevention efforts and family relations interventions. Such efforts might be associated with reductions in bullying victimization and sibling aggression.

The role of sibling aggression during childhood in decision-making during adulthood

Research shows sibling relationships can influence cognitive development, specifically in terms of high-order processes involved in social functioning. These high-order processes take place in the human prefrontal cortex. While prefrontal connectivity can be influenced by factors experienced during developmental phases, it remains unclear how experiences of aggression towards a sibling in childhood can contribute to high-order processes in adulthood, specifically decision-making. Through two studies, we sought to establish a relationship between sibling aggression and decision-making styles reported in adulthood, as well as real-time risky decision-making. Study 1 examined the relationship between childhood experiences of sibling aggression and high-order function, specifically decision-making. Self-reports from 142 adult participants revealed that using sibling aggression to maintain dominance (ESAS; Harrison, Harrison, N. (2017). Sibling aggression: Associations with parenting styles, social dominance behaviour and co-occurring forms of family aggression (Doctoral thesis, University of Central Lancashire, UK). Retrieved from: https://clok.uclan.ac.uk/20917/) was linked to avoidant and spontaneous decision-making (GDMS; Scott & Bruce, Scott and Bruce, Educational and Psychological Measurement 55:818–831, 1995). The findings reported here indicate a possible role of sibling aggression in the development of avoidant and spontaneous decision-making styles. Study 2 investigated the relationship between childhood sibling aggression (ESAS; Harrison, Harrison, N. (2017). Sibling aggression: Associations with parenting styles, social dominance behaviour and co-occurring forms of family aggression (Doctoral thesis, University of Central Lancashire, UK). Retrieved from: https://clok.uclan.ac.uk/20917/) and performance in risky decision-making tasks (IOWA gambling task; Bechara et al., Bechara et al., Brain 123:2189–2202, 2000) among 75 adult participants. It revealed that experiences of sibling aggression did not predict risky decision-making. These findings indicate that the types of decisions made may be influenced by childhood sibling aggression, but not the level of risk involved in decisions made.

Type of Family Support for Infant and Toddler Care That Relieves Parenting Stress: Does the Number of Children Matter?

The present study aimed to investigate the status and relationships between family support for infant and toddler care and parenting stress, and to explore differences related to the number of children in the families. We conducted a survey among 13,390 Chinese parents who were randomly sampled from six provinces of China. Descriptive analysis, multivariate analysis of variance, and regression analysis indicated that (1) current family support for infant and toddler care in China is insufficient; (2) most Chinese parents reported moderate parenting stress, with the highest scores given for parental distress, followed by difficult child, and parent-child dysfunctional interaction; (3) the larger the number of children in the family, the less the family support for infant and toddler care, the greater the parenting stress; (4) there was a difference between the effects of family support for infant and toddler care on relieving parenting stress among families with different numbers of children. These findings indicate that different types of family support for infant and toddler care should be provided for families with different numbers of children, to ease parenting stress and promote the implementation of the government's current fertility policy.

The Associations between Sibling Victimization, Sibling Bullying, Parental Acceptance-Rejection, and School Bullying

Bullying has been identified as the most common form of aggression experienced by school-age youth. However, it is still unclear about the family's influence on school bullying. Therefore, the current study aimed to explore the associations between sibling bullying and school bullying, sibling victimization and school victimization, and parental acceptance-rejection and school bullying victimization. The study was cross-sectional and conducted on a sample of students aged between 11 and 20 years recruited from middle schools in Algeria. The study used a survey adopted from the scale of Sibling Bullying, Student Survey of Bullying Behavior-Revised 2, and the Survey of parental acceptance-rejection in collecting the data. The model's results assessing the association between sibling bullying and school bullying demonstrated that the effect of sibling physical and sibling verbal victims on school victimization was statistically significant. Despite the non-significant effect of sibling emotional victims on school victimization, the effect of sibling physical and sibling verbal bullying on school bullying was statistically significant. However, the effect of sibling emotional bullying on school bullying was not statistically significant. The direct effect of parental acceptance on school victimization was not statistically significant, whereas the effect of parental rejection on school victimization was statistically significant. The direct effect of parental acceptance on school bullying was not statistically significant, while the effect of parental rejection on school bullying was statistically significant. Based on the results, this study provides insights into the understanding of how the family and siblings contribute to school bullying. In particular, sibling victimization, sibling bullying, and parental acceptance-rejection are predictive factors of school bullying among adolescents. Future research should take into account factors based on family to explore the risks of school bullying.

Does cannabis use predict aggressive or violent behavior in psychiatric populations? A systematic review

Background: Despite an increase in information evaluating the therapeutic and adverse effects of cannabinoids, many potentially important clinical correlates, including violence or aggression, have not been adequately investigated.Objectives: In this systematic review, we examine the published evidence for the relationship between cannabis and aggression or violence in individuals with psychiatric disorders.Methods: Following PRISMA guidelines, articles in English were searched on PubMed, Google Scholar, MEDLINE, and PsycINFO from database inception to January 2022. Data for aggression and violence in people with psychiatric diagnoses were identified during the searches.Results: Of 391 papers identified within the initial search, 15 studies met inclusion criteria. Cross-sectional associations between cannabis use and aggression or violence in samples with post-traumatic stress disorder (PTSD) were found. Moreover, a longitudinal association between cannabis use and violence and aggression was observed in psychotic-spectrum disorders. However, the presence of uncontrolled confounding factors in the majority of included studies precludes any causal conclusions.Conclusion: Although cannabis use is associated with aggression or violence in individuals with PTSD or psychotic-spectrum disorders, causal conclusions cannot be drawn due to methodological limitations observed in the current literature. Well-controlled, longitudinal studies are needed to ascertain whether cannabis plays a causal role on subsequent violence or aggression in mental health disorders.

Prevalence and Risk Factors of Peer Victimization in a National Sample of Chilean Children and Youth

This research aimed to determine the prevalence and risk factors of peer victimization (PV) in a national sample of Chilean children and youth. We worked with secondary data of Encuesta Nacional de Polivictimización (2017). The sample was probabilistic and included 19,684 participants between 12 and 18 years (M = 14.7, SD = 1.59) from all Chilean regions. The participants answered an adapted version of the Juvenile Victimization Questionnaire to assess different violence forms. However, for the present study, only five items related to PV were considered. The results showed that a lifetime and the last 12 months' prevalence of PVwerevery high. More than half of the adolescents (60.3%) reported at least one type of victimization by peers throughout a lifetime. Gender differences were found; females have the highest rates of PV than males. These results have discussed the magnitude of this issue and promote the generation of prevention strategies.

Co-occurrence of sibling and peer bullying victimization and depression and anxiety among Chinese adolescents: The role of sexual orientation

BACKGROUND

Bullying victimization is a robust predictor of mental distress among lesbian/gay, bisexual, and questioning (LGBQ) adolescents. However, few research accounted bullying victimization within the context of both sibling and peer relationships.

OBJECTIVE

To examine the effect of sibling and peer bullying victimization on depression and anxiety between heterosexual adolescents and LGBQ adolescents.

METHOD

This was a cross-sectional study with a random sample of 3062 Chinese senior high school students (56.0% female) aged 14 to 18. Related information was collected through a self-reported questionnaire. The associations were examined via a set of logistic regression analysis.

RESULTS

Of the participants, 12.5% were victims of sibling bullying only, 10.1% reported peer victimization only, and 4.7% were involved in both sibling and peer victimization. Compared to heterosexuals, LGBQ adolescents had increased risks of sibling victimization only, peer victimization only, and both sibling and peer victimization. The prevalence of major depression and generalized anxiety disorder were 24.9% and 18.7% respectively. Bullying victimization and sexual orientation were independently associated with depression and anxiety. Furthermore, the stratified analysis indicated that sibling victimization only was significantly associated with depression and anxiety for heterosexual adolescents, while the associations were not significant for LGBQ adolescents.

CONCLUSIONS

Sexual orientation and bullying victimization are predictive factors of depression and anxiety. In particular, bullying victimization shows the different effects on depression and anxiety between heterosexual and LGBQ adolescents. Anti-bullying intervention could take distinct strategies based on different sexual orientation to reduce risks of adolescents' mental health problems.

Prevalence and Associated Family Factors of Sibling Bullying Among Chinese Children and Adolescents

Sibling bullying is the most common form of aggression within family worldwide, while the prevalence and correlations of sibling bullying is little known in China. The current research focused on the association between family factors and sibling bullying among Chinese adolescents, and explore sex differences in sibling bullying in the context of Chinese culture. A cross-sectional study was conducted to explore the characteristics of sibling bullying by sampling 6302 children and adolescents who had at least 1 sibling living in the household. Of the participants, 1827 (29.0%) were involved in sibling bullying over the past half year, and pure victims, pure bullies, and bully-victims were 486 (7.7%), 510 (8.1%), and 831 (13.2%), respectively. Family factors of sibling bullying were partly different between boys and girls. Parental absence of both father and mother was a risk factor of being a pure bully and a bully-victim for boys, and of being a pure victim for girls. Parental son preference increased the odds of being a pure victim and a bully-victim for boys, and of being all roles of sibling bullying involvement for girls. Besides, parent–parent violence, parent–child violence, and living with a single parent were risk factors of sibling bullying. The results underline the importance of home environment on sibling relationship, and intervention of sibling bullying should include improving family climate.

Development and Reliability and Validity Test to the Parenting Stress Questionnaire for Two-Child Mothers

China is getting old before it gets rich. Among women of childbearing age, there seems to be little interest in having multiple children, and parenting stress may be one of the reasons. There are differences in the parenting stress felt by mothers with one child and those with two, but there is no questionnaire specifically aimed at the parenting stress felt by mothers of multiples in China. The purpose of the present study is to develop and verify a questionnaire specifically aimed at measuring the stress of two-child mothers in the Chinese context. We chose mothers as participants who were younger than 50 years old and their second child were younger than 18 years old as participants. The initial questionnaire was created after analyzing the results of 83 participants’ open questionnaires and 16 participants’ qualitative interviews. Item analysis and exploratory factor analysis were conducted with 279 participants. The final questionnaire was created after conducting reliability and validity tests on the responses of 263 participants to 23 items on the questionnaire covering four factors: characteristics of mother, environmental factor, characteristics of child, and relationship between the two siblings. The results of confirmatory factor analysis indicated that the four-factor model fit well (χ²/df = 2.00, CFI = 0.91, TLI = 0.90, SRMR = 0.06, RMSEA = 0.06). McDonald’s omega coefficients and split-half reliability coefficients both ranged from 0.50 to 0.95. The questionnaire scores were significantly positively correlated with parental burnout, the regret of having a second child and parenting stress, and were significantly negatively correlated with the intention of having a third child and support for the three-child policy. Overall, the present study confirmed the reliability and validity of the parenting stress questionnaire for two-child mothers, which can be used to measure the parenting stress experienced by mothers of multiples in China.

Youth Athletes' Perception of Existence and Prevalence of Aggression and Interpersonal Violence and Their Forms in Serbia

Aggression and interpersonal violence (IV) against children and youth are issues in contemporary society. The current study reports on the youth athletes' perception of the aggression and IV prevalence and its manifestation forms in a Serbian context. The sample included athletes (N = 2091) between the age of 11 and 18 years. Data were collected through an ad-hoc questionnaire created by the authors. Respondents' answers to introductory questions about the frequency of IV indicated its absence (78.1%). However, the answers to the questions about specific forms of violent peer behavior indicated forms as well as the time and place where IV most often occurs. They underlined that IV takes place mainly after training or competition and during sports camps; and that the dressing room is the most favorable place for these behaviors. They also confirmed that the most prevalent subtypes of IV are psychological (roughly 40%) and physical (approximately 30%). The respondents' opinions and experiences about IV (psychological, physical, sexual) revealed that factors such as gender, location, and parents' education level may influence the IV manifestation. Highlighting the prevalence and the most frequently manifesting types of aggression and IV could help in awareness-raising of these social issues.

Changes in peer and sibling victimization in early adolescence: longitudinal associations with multiple indices of mental health in a prospective birth cohort study

Victimization by peers and siblings is associated with poorer mental health outcomes in adolescence. What is less clear is whether mental health outcomes improve if victimization experiences cease (e.g., being victimized in primary school but not secondary school). This study aims to explore how changes in victimization experiences are associated with changes in mental health outcomes in early adolescence. Data are from 13,912 participants in the Millennium Cohort Study (MCS), a nationally representative cohort of individuals born in the UK. Self-reported victimization by peers and siblings, as well as mental health outcomes (depressive symptoms, life satisfaction, self-esteem, and body image), were collected at age 11 and age 14. Victimization at either time point was associated with poorer mental health across the range of outcomes, with effects largest for those who were consistently victimized. Those who reported increasing victimization had greater deterioration in their mental health compared with their peers who were never victimized. Conversely, children whose victimization decreased showed similar mental health development over this period as those who were never victimized. There was a cumulative effect of victimization by peers and siblings, with effect sizes generally larger for experiences with peers. Victimization in adolescence is associated with enduring reductions in mental health. Nonetheless, the promising outcomes associated with reductions in victimization suggest the potential for bullying interventions in schools to limit the deterioration in mental health in victimized groups.

Sibling, Peer, and Cyber Bullying Among Children and Adolescents: Co-occurrence and Implications for Their Adjustment

Bullying across the sibling, peer, and cyber context has consistently been associated with a range of long-term health and well-being consequences for children and adolescents. Although research examining different bullying forms simultaneously in the same study are emerging, it remains unclear to what extend sibling, peer, and cyber bullying co-occur and in what ways they are associated. Moreover, previous work has demonstrated that children and adolescents who experience multiple forms of victimization are at a particular risk of adverse outcomes. However, whether different constellations of co-occurring bullying forms have differential impacts has not yet been investigated sufficiently. The aim of the present study was to examine the frequencies of isolated and co-occurring sibling, peer, and cyber bullying as well as to explore their independent and cumulative relationships with child adjustment. This study was based on a sample of 329 children and adolescents aged between 9 and 15. Bullying experiences across the sibling, peer, and cyber context in the previous 6 months were assessed via self-report. Youth further reported on emotional problems, conduct problems, sleep problems, and academic achievement via an online questionnaire. Sibling, peer, and cyber bullying were uniquely associated with child outcomes. A cumulative relationship between bullying victimization across contexts and emotional problems, conduct problems, and sleep problems could be identified, while bullying perpetration across contexts was only linked to more conduct problems in a cumulative manner. The findings have important practical implications arguing for the adoption of a holistic approach toward bullying in prevention and intervention.

Characteristics of Disclosing Childhood Victimization and Risk of Revictimization in Young Adulthood

Experiencing victimization in childhood increases risk of adulthood revictimization, and it is important to understand what may contribute to such risk. One factor that may help to explain the increased risk of future victimization is disclosure. However, the literature is mixed as to whether disclosure of prior victimization is helpful for protecting against adverse outcomes, and much of the research on disclosure focuses solely on sexual victimization. The current study examines the relationship between various forms of childhood and adulthood victimization and whether disclosure moderates this relationship. In addition, this study investigates whether characteristics of disclosure are associated with revictimization risk. The sample included 275 undergraduates (M age = 19.52 years; 75.6% female, 77.5% non-Hispanic White or Caucasian). Participants reported on previous history of various forms of childhood and adulthood victimization. They also reported whether or not they had disclosed childhood victimization, and, if so, characteristics related to disclosure. Results revealed that number of childhood victimization experiences significantly predicted number of adulthood victimization experiences, and nearly every type of childhood victimization significantly increased risk of experiencing each type of adulthood victimization. Disclosure did not moderate the relationship between childhood and adulthood victimization. Participants who disclosed were more likely to disclose crime and peer/sibling victimization and disclose to parents or friends. Positive reactions to disclosure were more common than negative reactions; however, 75% of disclosers received at least one negative reaction. Finally, revictimized individuals received more overall negative reactions than nonrevictimized individuals. They also received more reactions characterized by the person they disclosed to trying to take control of their decisions or treating them differently. Results highlight the importance of examining relationships between various forms of victimization, considering how characteristics of disclosure relate to risk of revictimization, and the importance of educating potential support networks about appropriate responses to disclosure.

Impact of COVID-19 on Saudi Children: Special Focus on Behavioral, Social, and Emotional Aspects, 2020-2021

Background The coronavirus disease 2019 (COVID-19) pandemic has negatively affected many aspects of daily life. In Saudi Arabia, many studies, using a range of assessment approaches, have examined how the pandemic has affected the mental health of both the general public and healthcare workers. However, to develop effective public-health initiatives for such crisis events, it would also be relevant to determine the pandemic's impact on the behavioral, emotional, and social lives of Saudi children. Objective To assess, among Saudi children aged 3-15 years, the behavioral, emotional, and social changes that have occurred in their daily lives due to the COVID-19 pandemic. Materials and methods This study featured a cross-sectional design. Potential participants were approached through the most popular social media in Saudi Arabia, and the final sample size was 651 parents. As, at the time of data collection, the members of the Saudi public were requested to avoid face-to-face meetings where possible, a well-designed electronic questionnaire featuring closed-ended questions was used. Results Descriptive statistics showed that the mean age of the parents was 29±7 years (range: 20-60 years); over half (58%) were female. During the COVID-19 outbreak, one-third of children had asked to sleep in their parents' beds. Furthermore, approximately 30% of children demonstrated increased irritability and mood swings when compared with the period before the pandemic. Concerning adaptive social behaviors, during the pandemic, 22% of children appeared calmer and 14% of children seemed more thoughtful. Our study reports more screen time, less physical activity, and reduced sleep time among children compared with the pre-pandemic period. Conclusion The COVID-19 pandemic has psychologically affected children. The present results highlight the need to reduce this psychological burden by enhancing children's emotional resilience and involving parents in health-promotion programs aimed at mitigating the negative impacts of such public-health crises.

The Impact of Formal School Entry on Children's Social Relationships with Parents, Siblings, and Friends

The normative transition to formal schooling confronts children with social challenges but also opportunities. Longitudinal research on how school entry impacts children's family and friend-ship relationships is scarce. This study investigated social relationship qualities with parents, siblings, and friends among 1110 children (49.9% female) from the prospective, population-based Bavarian Longitudinal Study at 6 years (before school entry) and 8 years using a forced-choice card-sorting task. Multivariate analyses of variance revealed significant effects of age (i.e., school entry) on social relationship qualities with mothers (Pillai's Trace (PT) = 0.28, F(9, 1101) = 47.73, p < 0.001), fathers (PT = 0.14, F(9, 1101) = 19.47, p < 0.001), siblings (PT = 0.27, F(9, 1101) = 46.14, p < 0.001), and friends (PT = 0.21, F(9, 1101) = 32.57, p < 0.001). On average, children reported higher levels of parental comfort after school entry. Companionable qualities increased in relationships with friends, whereas sibling relationships became more conflictual from preschool to early school age. Findings provide unique insights into how social relationships develop from preschool to early school age, supporting evidence of the growing importance of friends. Conflict was predominant and increasing in sibling relationships and should be considered more in future research.

Implications of COVID-19 school closures for sibling dynamics among U.S. Latinx children: A prospective, daily diary study

This study aimed to illuminate the implications of COVID-19 school closures for sibling dynamics among Latinx school-age children in the U.S. and to examine family and cultural factors that may have conditioned school closure effects. Data came from an ongoing study of Latinx families in Arizona that collected home visit and survey data prepandemic (fall 2019; T1) and daily diary data during the outbreak (February to May 2020; T2). The analyses focused on 215 Latinx children (47% female; Mage = 9.72, SD = 1.22; 88% Mexican-origin) from 116 families (T1 family income median = $27,600, SD = $24,421). Multilevel tobit regression models were estimated to examine associations linking both T2 school closure and number of days since school closure with daily sibling positivity and negativity. The models also tested moderation effects of T1 family socioeconomic status, sibship size, child enculturation, and prior sibling positivity and negativity on these associations. Results showed that, although main effects of school closure on sibling dynamics were nonsignificant, school closure was linked to more sibling positivity in families with more children and among more enculturated children, and days since school closure was linked to more sibling positivity in families with more children and to lower sibling negativity among those with less prepandemic sibling negativity. Findings highlight differentiated effects of COVID-19 school closures on sibling dynamics among Latinx children whose families have been disproportionally affected by the COVID-19 pandemic, illuminate the role of Latinx family cultural strengths, and have implications for intervention programs and public policies. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Sibling Bullying: A Prospective Longitudinal Study of Associations with Positive and Negative Mental Health during Adolescence

Sibling bullying is associated with poor mental health outcomes, but the relevance of specific bullying roles remains unclear. Data from a population-based study (n = 17,157, 48% female) focusing on early (11 years), middle (14 years), and late (17 years) adolescence were analyzed. Associations between sibling bullying roles in early adolescence and positive and negative mental health outcomes in late adolescence were investigated. Generally, bullying, irrespective of role, was associated with poorer mental health outcomes in late adolescence. As the frequency of bullying victimization increased between early and middle adolescence so did the severity of mental health outcomes in late adolescence. The developmental trajectories of externalizing problems were influenced by bullying in early adolescence. Sibling bullying, irrespective of role, is associated with poor mental health outcomes.

Bullying in the Russian Secondary School: Predictive Analysis of Victimization

Background: Bullying has been recognized as an important risk factor for personal development in adolescence. Although numerous studies report high prevalence of bullying in Russian schools, limited research was based on the large-scale, nationally representative analysis, which highlights the lack of findings applicable to the national context.

Objective: This study aims to address the following research questions: (1) What is the bullying victimization prevalence in Russian secondary schools? (2) What is the socio-demographic profile of the bullying victims? (3) To what extent do learning outcomes in core subject domains predict bullying? (4) How does psychological climate at school affect the occurrence of bullying? (5) Which emotional states do bullying victims typically display? (6) Which psychosocial traits are the most common for bullying victims?

Data and Methods: The study adopts the statistical analysis of the Programme for International Student Assessment (PISA) data in Russia. The final sample consists of 6,249 children aged 15 years who answered the bullying questions. K-means clustering approach was adopted to identify schoolchildren who should be classified as bullying victims amongst those who have reported bullying. Logistic regression was used to estimate the probability change of bullying under different psychosocial factors and examine the effect of bullying on the emotional states of the victims.

Results: The results of the study reveal that 16% of children are victims of bullying in the Russian secondary school. Bullying is strongly associated with learning outcomes in reading, thus outlining that low performers are at risk of severe victimization. Bullying is also contingent on the psychological climate and tends to develop more frequently in a competitive environment. The findings outline that bullying increases negative feelings such as misery, sadness, and life dissatisfaction amongst its victims, making a substantial footprint on their lives. Logically, bullying victims are less likely to feel happy and joyful. Finally, it was revealed that bullying victims do not tend to share negative attitudes to the per se, which identifies directions for future research in this domain.

Implications: Instead of dealing with the consequences of bullying, prevention strategies should aim at facilitating a positive environment at school, thus addressing the problem.

Family Dynamics and Young Adults' Well-Being: The Mediating Role of Sibling Bullying

Although a common form of family violence, sibling bullying is often viewed as harmless by families and society. Consequently, it has not received as much attention in research compared with peer bullying or other types of family violence, such as interpartner violence, child abuse, and elder abuse. Considering that sibling relationships have lasting effects on children's development, this retrospective study focused on the antecedents and outcomes of sibling bullying. Grounded in family system theory and social learning theory, it explored whether sibling bullying during childhood and adolescence mediated the relationship between negative family dynamics (i.e., sibling rivalry, interparental hostility, and parental hostility) and young adults' well-being (i.e., sense of competence, internalized problems, self-esteem, and satisfaction with life). Data from 216 respondents were analyzed using structural equation modeling. Results revealed that young adults who reported higher levels of sibling rivalry and interparental hostility were more likely to be victims of sibling bullying. In turn, sibling bullying was associated with lower sense of competence, self-esteem, and life satisfaction, as well as more internalized problems. Parents' hostile behaviors toward their children were not associated with sibling bullying but were negatively associated with well-being in early adulthood. Our work underlines the importance of harmonious family dynamics and the need for sibling bullying to be taken more seriously by parents and family members. From a clinical point of view, our findings suggest that clinicians and human service workers should adopt a family-level approach when trying to reduce sibling bullying and its negative outcomes by educating parents about the interdependence of family relationships.

The Epidemiology of Aggression and Associated Factors among Iranian Adult Population: A National Survey

Background: This survey was conducted to determine the level of aggression among the Iranian adult population and underlying predisposing factors.

Study design: A cross-sectional study.

Methods: This cross-sectional study included 10,957 participants, involving 23 out of the 31 provinces of Iran in 2019. The outcome of interest was aggression, evaluated by the Buss & Perry aggression questionnaire. The association between aggression and 34 demographic, behavioral, social, and cultural characteristics was assessed using simple and multiple linear regression.

Results: The overall mean (SD) score of aggression was 77.10 (22.53). Based on the severity of aggression, the participants were categorized into four groups as follows: 2,464 (23.1%) nonaggressive, 4,692 (43.9%) mild, 3,071 (28.8%) moderate, and 454 (4.2%) severe aggressive. Aggression was more likely to occur in people with the following characteristics: younger ages, having several siblings, lower ranks of birth, having an intimate friend of the opposite sex, having an aggressive father/mother, history of parental divorce, interest in watching action/porn movies, listening to music, history of escape from home/school, using neuropsychiatric drugs, using illicit drugs, history of suicidal thoughts/attempt, and family conflict and hostility. Aggression was less likely to occur with the following characteristics: reading, regular physical exercise, the ability to control anger, regular prayer, adherence to avoid lying, respect to other people's rights, sexual satisfaction, and attachment to parents.

Conclusions: A majority of the population has some degree of aggression. Aggression is a multifactorial behavior corresponding with several demographical, social, cultural, and religious factors, some of which back to early childhood events.

Precursors of sibling bullying in middle childhood: Evidence from a UK-based longitudinal cohort study

BACKGROUND

There is increasing evidence that sibling bullying is associated with various social, emotional, and mental health difficulties. It is, however, unclear which factors predict sibling bullying in middle childhood and whether child-level individual differences make some children more susceptible to sibling bullying involvement.

OBJECTIVE

To investigate the precursors of sibling bullying in middle childhood in a UK based population sample.

PARTICIPANTS AND SETTING

Existing data from the prospective Millennium Cohort Study (N = 16,987) were used. Primary caregivers reported on precursors (child age 7 years or earlier) whilst children self-reported on sibling bullying (child age 11 years).

ANALYSIS

A series of multinomial logistic regression models were fitted. First, testing for crude associations between sibling bullying and the precursors individually. Culminating in a final model with the significant predictors from all of the previous models.

RESULTS

Structural family-level characteristics (e.g. birth order, ethnicity, and number of siblings) were found to be the strongest predictors of sibling bullying involvement followed by child-level individual differences (e.g. emotional dysregulation and sex). Parenting and parental characteristics (e.g. primary caregiver self-esteem and harsh parenting) predicted sibling bullying, but to a lesser extent.

CONCLUSIONS

These findings suggest that structural family characteristics and child-level individual differences are the most important risk factors for sibling bullying. If causality can be established in future research, they highlight the need for interventions to be two-pronged: aimed at parents, focusing on how to distribute their time and resources appropriately to all children, and the children themselves, targeting specific sibling bullying behaviors.

Association of Childhood Intrafamilial Aggression and Childhood Peer Bullying With Adult Depressive Symptoms in China

IMPORTANCE

Childhood intrafamilial aggression, a series of aggressive behaviors inflicted by family members, and adulthood mental health are associated with childhood peer bullying (eg, in the neighborhood or in school). However, few studies have been able to identify the contribution of childhood peer bullying to the association between childhood intrafamilial aggression and adult depression.

OBJECTIVE

To examine the mediating role of childhood peer bullying in the association between childhood intrafamilial aggression and depression in adulthood.

DESIGN, SETTING, AND PARTICIPANTS

This population-based cross-sectional study used data from the China Health and Retirement Longitudinal Study (CHARLS). Middle-aged and older adults (≥45 years) participated in a CHARLS wave from July 1 to September 30, 2015, and the CHARLS life history survey from June 1 to December 31, 2014, with complete data. A 4-step mediation model with logistic regression was run to test the mediating role of peer bullying. Data analysis was performed from October 1 to 30, 2019.

EXPOSURES

Childhood intrafamilial aggression, including parental physical maltreatment and sibling aggression, and peer bullying.

MAIN OUTCOMES AND MEASURES

Depressive symptoms measured by a categorical variable derived from the Center for Epidemiologic Studies Depression Scale, based on a cutoff score of 12.

RESULTS

Among the 15 450 respondents (mean [SD] age, 59.5 [9.9] years; 7987 women [51.7%]), 4422 (28.6%) were exposed to parental physical maltreatment; 986 (6.4%), to sibling aggression; and 2504 (16.2%), to peer bullying in childhood. Respondents experiencing intrafamilial aggression were more likely to be bullied by peers (parental physical maltreatment odds ratio [OR], 2.53 [95% CI, 2.25-2.83]; sibling aggression OR, 3.05 [95% CI, 2.46-3.78]). Children with these adverse experiences were at a higher risk of adult depression symptoms (parental physical maltreatment OR, 1.28 [95% CI, 1.15-1.42]; sibling aggression OR, 1.40 [95% CI, 1.13-1.74]; peer bullying OR, 1.78 [95% CI, 1.56-2.01]). Peer bullying mediated 30% (95% CI, 19%-42%) of the association between childhood parental maltreatment and adult depression and 35% (95% CI, 15%-54%) of the association between sibling aggression and depression symptoms in adulthood.

CONCLUSIONS AND RELEVANCE

This study found that being bullied by peers was a mediator of the association between childhood intrafamilial aggression and depression in adulthood. The findings have important implications to mitigate the effect of early-life stress and promote life-course mental health through dealing with childhood intrafamilial aggression and peer bullying experiences coordinately.

Sibling Bullying in Middle Childhood is Associated with Psychosocial Difficulties in Early Adolescence: The Case of Individuals with Autism Spectrum Disorder

Sibling bullying is associated with various psychosocial difficulties. We investigated this in 231 individuals with Autism Spectrum Disorder (ASD) and 8180 without ASD between middle childhood (age 11 years) and early adolescence (age 14 years). On the whole, self-reported sibling bullying decreased from middle childhood to early adolescence. Despite this, individuals with ASD continued to report more sibling bullying as both perpetrator and victim in early adolescence than those without ASD. We found that self-report sibling bullying in middle childhood was associated with psychosocial difficulties in early adolescence. Moreover, individuals with ASD were more likely to report being bullied by both siblings and peers in middle childhood and this pattern of victimisation was associated with concurrent and longitudinal psychosocial difficulties.

Predictors of sibling victimization and associations with self-perception and relationship attachment in adolescence

Research has shown that sibling victimization may be as detrimental to adolescent outcomes as peer victimization. However, many questions remain unanswered with regard to potential protective parenting factors and consequences sibling victimization among adolescents. This study tested a mediation model of sibling victimization with parental monitoring, a positive parenting factor, as a predictor and parent and peer-adolescent attachment as mediated by adolescent self-perceptions as potential outcomes. A three path mediation from parental monitoring → sibling victimization → adolescent self-perceptions → peer/parent-adolescent attachment was also tested. Structural Equation Modeling revealed that parental monitoring was negatively associated with sibling victimization only for girls. Sibling victimization had negative direct and indirect effects on parent- and peer-adolescent attachment via adolescent self-perceptions of social competence and self-worth. Findings suggest that parental monitoring may be important in the prevention of sibling victimization and self-perceptions may be an important point of intervention adolescents experiencing sibling victimization.

Family Violence, Sibling, and Peer Aggression During Adolescence: Associations With Behavioral Health Outcomes

Bullying and sibling aggression can appear as similar behavior, though the latter is comparatively understudied. Aligned with the Theory of Intergenerational Transmission of Violence, research suggests that exposure to family violence increases an individual's risk for perpetrating violence in their own future relationships. Additionally, Problem Behavior Theory suggests that engaging in one problem behavior (e.g., bullying) increases the likelihood of engaging in other problem behavior (e.g., substance use). In Phase 1, this study of middle school students from the U.S. examined how exposure to family violence predicted membership in latent classes of bullying and sibling aggression perpetration (N = 894, sampled from four middle schools). In Phase 2, we used mixture modeling to understand how latent classes of family violence, sibling aggression, and bullying predict future substance use, mental health outcomes, and deviance behavior later in high school. Results yielded four profiles of peer and sibling aggression: high all, high sibling aggression, high peer aggression, and low all aggression. Youth who reported witnessing more family violence at home were significantly more likely to fall into the sibling aggression only and high all classes, compared to the low all class. Phase 2 results also yielded four classes: a high all class, a sibling aggression and family violence class, a peer aggression class, and a low all class. Individuals in the high all class were more likely to experience several unfavorable outcomes (substance use, depression, delinquency) compared to other classes. This study provides evidence for pathways from witnessing violence, to perpetrating aggression across multiple contexts, to developing other deleterious mental and behavioral health outcomes. These findings highlight the negative impact family violence can have on child development, providing support for a cross-contextual approach for programming aimed at developing relationships skills.

Association Between Sub-types of Sibling Bullying and Mental Health Distress Among Chinese Children and Adolescents

Sibling bullying is a common phenomenon in childhood and adolescence worldwide and has a significant association with mental health distress. However, there have been few studies that have examined the associations between any specific sub-type of sibling bullying and depression as well as anxiety. Besides, the association between sibling bullying and psychological well-being was never explored among the Chinese population. The purpose of this cross-sectional study was to examine the associations between the number of sub-types of sibling bullying involvement and depression as well as anxiety among Chinese children and adolescents. Multi-stage stratified cluster sampling was used to recruit 5,926 participants aged 10 to 18 who had at least one sibling living in the household. Different sub-types of sibling bullying involvement were determined by using Olweus Bully/Victim Questionnaire (OBVQ). The nine-item Patient Health Questionnaire (PHQ-9) and the seven-item Generalized Anxiety Disorder Scale (GAD-7) were used to screen clinical ranges of major depression and generalized anxiety disorder, respectively. Of the participants, 1,235 (20.8%) were bullied by siblings, and 1,230 (20.8%) perpetrated bullying behavior against siblings over the past 6 months. After controlling potential confounders, adjusted model of logistic regression analyses indicated that all three sub-types of sibling victimization and perpetration were significantly associated with both depression and anxiety. There were linear associations between the number of sub-types of sibling bullying victimization and depression (adjusted OR = 1.49, 95% CI 1.32 to 1.68) as well as anxiety (adjusted OR = 1.68, 95% CI 1.48 to 1.90). Besides, linear trends were found between the number of sub-types of sibling bullying perpetration and depression (adjusted OR = 1.44, 95% CI 1.26 to 1.64) as well as anxiety (adjusted OR = 1.63, 95% CI 1.42 to 1.87). The findings underline dose-response relationships between the number of sub-types of sibling bullying involvement and mental health distress. Intervention programs should be conducted to focus on developing mental health status of those children and adolescents who are involved in multiple sub-types of sibling victimization or perpetration.

Symptoms of posttraumatic stress disorder among targets of school bullying

BACKGROUND

The aim of this study was to investigate whether bullying among students is associated with symptoms of posttraumatic stress disorder (PTSD), and whether associations are comparable to other traumatic events leading to PTSD.

METHODS

Data were collected from 219 German children and adolescents: 150 students from grade six to ten and 69 patients from an outpatient clinic for PTSD as a comparison group. Symptoms of PTSD were assessed using the Children's Revised Impact of Event Scale (CRIES) and the Posttraumatic Symptom Scale (PTSS-10). A 2 × 5 factorial analysis of variance (ANOVA) with the factors gender (male, female) and group (control, conflict, moderate bullying, severe bullying, traumatized) was used to test for significant differences in reported PTSD symptoms.

RESULTS

Results showed that 69 (46.0%) students from the school sample had experienced bullying, 43 (28.7%) in a moderate and 26 (17.3%) in a severe way. About 50% of the severe bullying group reached the critical cut-off point for suspected PTSD. While the scores for symptoms of PTSD were significantly higher in bullied versus non-bullied students, no significant differences were found between patients from the PTSD clinic and students who experienced severe bullying.

CONCLUSIONS

Our findings suggest that bullying at school is highly associated with symptoms of PTSD. Thus, prevention of bullying in school may reduce traumatic experiences and consequent PTSD development.

The Independent and Cumulative Effects of Sibling and Peer Bullying in Childhood on Depression, Anxiety, Suicidal Ideation, and Self-Harm in Adulthood

Sibling and peer bullying are reported as the most frequent forms of violence experienced across childhood. There is now ample evidence indicating an association between sibling and peer bullying, with those reporting sibling bullying at an increased risk of peer bullying. While there is convincing evidence of a causative association between peer bullying and a range of mental health outcomes, sibling bullying continues to receive far less attention. The aim of this study was to explore whether sibling bullying roles (non-involved, victim, bully-victim, bully) in middle childhood were independently associated with clinical diagnoses of depression and anxiety and reports of suicidal ideation and self-harm in early adulthood. We further tested whether there was a cumulative relationship between involvement in sibling and peer bullying victimization. This study was based on up to 3,881 youth from the Avon Longitudinal Study of Parents and Children, a prospective birth-cohort based in the United Kingdom. Sibling and peer bullying was assessed via self-report when youth were 12 years of age, while depression, anxiety, suicidal ideation, and self-harm were assessed via self-administered computerized interviews at 24 years of age. Involvement as a sibling bully-victim was associated with clinical diagnosis of depression (OR = 1.91, 95% CI: 1.33-2.72), while sibling victims were at increased odds of both suicidal ideation (OR = 1.52; 95% CI, 1.16-1.98) as well as suicidal self-harm (OR = 2.20, 95% CI, 1.36-3.58) in early adulthood, even after accounting for concurrent peer bullying and a range of other pre-existing childhood confounders. Sibling and peer bullying were further associated in a homotypic manner. A dose-response relationship of bullying in the home and school across mental health outcomes was found. Youth victimized by both their siblings and peers displayed the highest odds of developing clinical depression, suicidal ideation, and self-harm. Children bullied at home and at school had no safe place to escape the bullying and torment. Our findings highlight the need for intervention studies tailored toward reducing sibling bullying, as these may hold large promise for alleviating a range of adverse outcomes, including the prevention of peer bullying, which may be contingent on early bullying experiences in the home environment.

The Predictive Role of Maternal Parenting and Stress on Pupils' Bullying involvement

The link between inappropriate parenting style and both bullying and victimization is well documented. However, it is not clear as to which kind of parenting style is associated with victimization. Furthermore, no studies have yet been conducted regarding the role of parental stress in bullying and victimization. This study aimed to examine the role of parenting styles and maternal stress in pupils' bullying and victimization. A total of 300 primary school pupils, enrolled in fourth and fifth grades, participated in the study. Initially, 100 noninvolved pupils were randomly selected using a multistage cluster sampling method. Then using a screening method, 100 bully pupils and 100 victimized peers were selected. Olweus Bullying Scale and teacher nomination were administered for screening these pupils. Baumrind Parenting Style Questionnaire and revised version of Abidin Parental Stress Index (short form) were also applied to all pupils in the study. Data were analyzed using discriminant function analysis. The findings showed that (a) with regard to parenting styles, significant differences were found among groups. Authoritarian parenting style could significantly predict pupils' bullying behavior, whereas victimization was predictable in families with permissive parenting style. In addition, noninvolved pupils were predicted to have authoritative parenting style. (b) Considering maternal stress, significant differences were observed across groups. Parents of bullies and victims were predicted to have higher maternal stress than noninvolved pupils. The implications of the study in relation to the role of mothers in bullying and victimization are discussed.

Do callous-unemotional traits mediate the effect of family competence on bullying?

One of the assumptions of the triadic reciprocal model is that the dynamic relationships between internal factors and environmental contexts may have a reciprocal influence on behaviour. Based on this assumption, this study examined whether callous-unemotional traits mediate the relationship between family competence and bullying among 256 selected senior secondary pupils (age = 14–16; M  = 15.5, SD  = 5.4; boys = 131 and girls = 125). Three self-report scales were used to collect data for bullying, family competence, and callous-unemotional traits. Mediated multiple regression was used to test the hypotheses. The result showed that callous-unemotional traits and family competence have a positive and negative linear relationship with bullying, respectively, B  = 0.13 and −0.20, p  < .01. Similarly, the indirect effect of family competence on bullying through callous-unemotional traits was significant, B = 0.04, p < .05. This indicated that callous-unemotional traits could regulate the effect of family competence on bullying. The results may have implications for understanding, planning, and designing programmes for preventing and intervention of school bullying.

Bullying by siblings and peers: Poly-setting victimization and the association with problem behaviours and depression

BACKGROUND

In recent times, sibling bullying has emerged of interest to researchers concerned with the emotional and behavioural implications for victimization regardless of type and setting.

AIMS

This research attempts to extend current knowledge on both peer and sibling bullying and to determine the effects of poly-setting victimization. This paper is concerned with the following objectives: (1) determining the current rate of bullying and victimization among siblings and peers in a large sample of adolescents; (2) investigating the relationship between sibling and peer bullying and depression and behaviour; (3) highlighting the carry-over effects of bullying from one setting to another; and (4) determining the overall association of poly-setting victimization with depression and behaviour.

SAMPLE AND METHODS

Over 2,000 adolescents aged between 12 and 15 years participated in an online survey.

RESULTS

Results found lower rates of sibling bullying compared to international studies. Sibling victims of bullying were at increased risk of becoming peer victims. Poor friendship quality, disliking school, along with peer and sibling bullying involvement predicted scores in the clinical range for outcome measures of internalizing and externalizing problem.

CONCLUSIONS

The current study has clinical and educational implications for working with all important stakeholders (i.e., schools, parents, siblings) to reduce bullying and improve mental health.

The Prevalence and Psychopathological Correlates of Sibling Bullying in Children with and without Autism Spectrum Disorder

Using data from a prospective population based study, the prevalence and psychopathological correlates of sibling bullying in children with and without autism spectrum disorder (ASD) were estimated. There were 475 children with ASD and 13,702 children without ASD aged 11 years. Children with ASD were more likely to be bullied by their siblings compared to those without ASD. They were also more likely than those without ASD to both bully and be bullied by their siblings, which was associated with lower prosocial skills as well as more internalizing and externalizing problems compared to those not involved in any sibling bullying. Interventions to improve social and emotional outcomes in children with ASD should focus on both the affected and the unaffected sibling.

Differentiating typical from atypical perpetration of sibling-directed aggression during the preschool years

BACKGROUND

Sibling aggression is common and often viewed as benign. Although sibling aggression can be harmful for the victims, it may also be a marker of clinical risk for the aggressor. We differentiated typical from atypical levels of perpetration of sibling-directed aggression among preschoolers, a developmental period in which aggression is a normative misbehavior, by (a) identifying how frequently aggressive behaviors targeted at a sibling must occur to be psychometrically atypical; (b) mapping the dimensional spectrum of sibling-directed aggression from typical, more commonly occurring behaviors to rarer, more atypical, actions; and (c) comparing the psychometric atypicality and typical-to-atypical spectrum of sibling-directed aggression and peer-directed aggression.

METHODS

Parents (N = 1,524) of 3- (39.2%), 4-(36.7%), and 5-(24.1%) year-olds (51.9% girls, 41.1% African-American, 31.9% Hispanic; 44.0% below the federal poverty line) completed the MAP-DB, which assesses how often children engage in aggressive behaviors. We used item-response theory (IRT) to address our objectives.

RESULTS

Most aggressive behaviors toward siblings were psychometrically atypical when they occurred 'most days' or more; in contrast, most behaviors targeted at peers were atypical when they occurred 'some days' or more. With siblings, relational aggression was more atypical than verbal aggression, whereas with peers, both relational and physical aggression were more atypical than verbal aggression. In both relationships, the most typical behavior was a verbally aggressive action. Results were broadly replicated in a second, independent sample.

CONCLUSIONS

These findings are a first step toward specifying features of sibling aggression that are markers of clinical risk and belie the notion that sibling aggression is inherently normative.