Does Hostile Attributional Bias for Relational Provocations Mediate the Short-Term Association between Relational Victimization and Aggression in Preadolescence?

Trajectories of physical and relational aggression across early childhood: Relations with peer risk factors

The goal of the current study was to examine trajectories of relational and physical aggression in early childhood and evaluate peer predictors of these trajectories (i.e., peer rejection, relational victimization, and physical victimization). The study spanned three-time points (T1 in the spring, T2 in the fall, and T3 in the spring) in early childhood (N = 300; 44.0% girls; Mage  = 44.70 months, SD = 4.38; 3.0% African American/Black, 7.6% Asian/Asian American/Pacific Islander, 1.0% Hispanic/Latinx, 11.3% multiracial, 62.1% White, and 15.0% missing/unknown). Observations of peer victimization and teacher report of peer rejection were collected at T1, and teacher report of aggression was collected at all time points. Results from piecewise latent growth models demonstrated that both forms of aggression decreased from T1 to T2 as children entered a new classroom and increased from T2 to T3 as they remained in that classroom. The increase in physical aggression from T2 to T3 was only significant for boys. Peer rejection at T1 emerged as a predictor of both intercepts and slopes from T1 to T2, and physical victimization predicted the physical aggression intercept and physical aggression slope from T1 to T2. Children high on these peer risk variables had higher initial levels of aggression, followed by a greater decrease in aggression from T1 to T2. Results underscore the importance of studying incremental change in aggression in early childhood and suggest that children who experience negative peer treatment have greater fluctuations in aggression over time.

Relational Peer Victimization as a Predictor of Academic Engagement

Peer victimization can be detrimental to youth. This study examines a particular type of peer victimization, relational peer victimization, and its effect on students' engagement in the classroom. We specifically investigate the longitudinal relationship between relational peer victimization and academic engagement in a sample of 204 Black 3rd through 5th grade elementary school students by utilizing multiple informants: students and their parents reported on relational peer victimization, and teachers reported on students' academic engagement. Our findings showed convergence between student and parent reports of relational peer victimization and revealed that experiencing relational peer victimization during the beginning of the school year (fall) negatively predicts teacher reported academic engagement towards the end of the school year (spring). Our study suggests that relational peer victimization is a critical issue that educators and researchers should consider when trying to foster academic engagement. There is also a need for further research regarding the role that families play in providing support to Black relationally victimized youth.

Association between Bullying Victimization and Aggression in Lebanese Adolescents: The Indirect Effect of Repetitive Negative Thinking-A Path Analysis Approach and Scales Validation

(1) Background: The purpose of the present study was to validate the Perseverative Thinking Questionnaire (PTQ) and the Buss-Perry Aggression Questionnaire-Short Form (BPAQ-SF) and test whether repetitive negative thinking plays an indirect role in the relationship between bullying victimization and aggression among Lebanese adolescents. (2) Methods: This cross-sectional study was conducted between January and May 2022 and included 379 Lebanese adolescent students (64.9% females, mean age 16.07 years). (3) Results: The three-factor solution of the PTQ and the four-factor solution of the BPAQ-SF showed excellent model fit. PTQ mediated the association between bullying victimization and physical aggression, verbal aggression, hostility, and anger. (4) Conclusions: This study expands on previous research by showing that repetitive negative thinking, an impactful socio-cognitive factor for students' mental health, has a mediating (indirect) effect on the cross-sectional relationship between bullying victimization and aggression. This suggests that interventions aiming to prevent aggressive behaviors among adolescent students may be more effective if focused on repetitive negative thinking.

Consequences of Victimization on Perceived Friend Support during Adolescence

Victimization can harm youth in various ways and negatively affect their friendships with peers. Nevertheless, not all victimized youth are impacted similarly, and the literature is unclear regarding why some victims are more likely than others to experience friendship-based consequences. Using five waves of data on 901 adolescents (6th grade at wave 1; 47% male; 88% White) and a subsample of 492 victimized youth, this study assessed (1) whether victimization leads to decreases in perceived friend support, and (2) the factors that explain which victimized youth are most likely to experience decreases in perceived friend support. Explanatory factors included subsequent victimization, victims' social network status (self-reported number of friends, number of friendship nominations received), and victims' risky behaviors (affiliating with deviant friends, delinquency, aggression, binge drinking). Random effects regressions revealed that, among the full sample, victimization was linked to decreases in friend support. Among victimized youth, subsequent victimization and deviant friends decreased friend support. Having more friends was associated with increased friend support among victims, though this association weakened as the number of friends increased. The results emphasize that victimized youth are a heterogeneous group with varying risks of experiencing friendship-based consequences.

The Role of Autonomic System Coordination in Relations Between Peer Factors and Aggressive Behavior in Early Childhood

This study tested biological sensitivity to context theory in the peer context. Respiratory sinus arrythmia (RSA-R) and skin conductance level (SCL-R) reactivity to a peer stressor were collected for participants (N = 86; M age = 45.99 months old; 70.2% White) in the summer (Time 1). Children's peer risk (i.e., physical and relational victimization) and protective (i.e., received prosocial behavior) factors were examined in the fall (T2) and relational and physical aggression were measured at T2 and in the spring (T3). Interactions were tested in regression analyses. Interactions emerged between relational victimization, RSA-R, and SCL-R in the prediction of T3 relational aggression and between received prosocial behavior, RSA-R, and SCL-R in the prediction of T3 relational and physical aggression, respectively. There was a positive relation between T2 relational victimization and T3 relational aggression for children with a coactivation pattern (i.e., increased RSA and SCL activity to a bullying stressor) but no relation for any other physiological pattern. Conversely, there was a negative relation between T2 received prosocial behavior and both forms of aggression at T3 for children with a reciprocal pattern (i.e., increased RSA and decreased SCL or decreased RSA and increased SCL activity) but no protective benefit of received prosocial behavior on subsequent aggression for children with a coactivation pattern. For children with a coinhibition pattern (i.e., decreased RSA and SCL activity), received prosocial behavior was negatively related to subsequent physical but not relational aggression. In sum, a coactivation pattern in response to stress may represent a vulnerability factor.

A longitudinal mediation study of peer victimization and resting-state functional connectivity as predictors of development of adolescent psychopathology

Background

Peer victimization (PV) is associated with alterations in neural responses in regions subserving emotional regulatory processes and with increased risk of psychopathology during adolescence. The present study examined the longitudinal mediating effects of resting-state functional connectivity (rsFC) between adolescent PV and subsequent internalizing (depression and anxiety), and externalizing (conduct and hyperactivity/inattention) symptoms.

Methods

151 adolescents (baseline mean age 12-14; 54% males) were assessed and imaged three times during a five-year period. We focused on rsFC of a priori determined Regions-of-Interest (ROIs) guided by the literature (i.e., amygdala, anterior and posterior insula, anterior cingulate cortex, and medial prefrontal cortex). Multilevel mediation (MLM) analyses simultaneously examined the between-person, concurrent within-person, and lagged within-person associations between PV and internalizing/externalizing symptoms through changes in couplings of the amygdala with the other four ROIs. All models controlled for the effects of self-reported childhood maltreatment and sex differences.

Results

An increased rsFC of the amygdala-posterior insula significantly mediated the lagged within-person association of PV and internalizing symptoms (β = 0.144; 95% CI [0.018, 0.332]). This effect was significant regardless of childhood maltreatment, concurrent externalizing symptoms, and sex differences. The rsFC did not mediate the relationship between PV and externalizing symptoms.

Conclusions

Results of this study suggest that adolescent PV may lead to long-lasting maladaptive neural communication between emotional response and sensory perception of pain (i.e., bottom-up emotion regulation) and that these neural responses may serve as unique markers for increased internalizing symptoms that appear in later adolescence in peer-victimized youth. These findings have implications for interventions targeting internalizing symptoms in victimized adolescents.

Assessment of hostile intent attributions across escalating conflict stories

Previous research suggests the importance of intent attributions in the development and maintenance of aggressive behavior. The primary purpose of the current study was to develop a measure assessing increases in attributions of hostility in response to escalating social conflict scenarios that were relational and instrumental in nature and to determine whether hostility trajectories were associated with relevant social experiences and behavior. A sample of primarily emerging adults (n = 750; M age = 19.97, SD = 3.60; 49.4% women, 48.3% men, 2.3% nonbinary or transgender; 69.9% Caucasian) responded to surveys regarding social behavior, peer victimization, and reports of hostile attribution biases in addition to the developed measure. Findings indicated that individuals adjusted their intent attributions across the conflict escalation stories, as reflected in linear increases in hostility ratings. Hostile attribution trajectories were also related to hostile attribution biases, peer victimization, and social behavior, including physical and relational aggression and prosocial behavior.

Differences in Aggression and Alcohol Use among Youth with Varying Levels of Victimization and Popularity Status

Awareness that high-status adolescents can be targets of aggression has grown in recent years. However, questions remain about the associations of the confluence of victimization and popularity with adjustment. The current study fills this gap by examining the joint and unique effects of victimization and popularity on aggression and alcohol use. Participants were 804 Dutch adolescents (50.2% boys, M_age = 13.65) who were followed for one year. High-status victims were more aggressive and drank more alcohol than lower-status victims. High-status victims were also more proactively and indirectly aggressive and self-reported more bullying than high-status non-victims. Thus, the findings demonstrated a conjoined risk of victimization and popularity for some types of aggression.

Development of Bullying and Victimization: An Examination of Risk and Protective Factors in a High-Risk Sample

This prospective longitudinal study from birth to late adolescence investigated how early risk predicted subsequent aggression in middle childhood and bullying perpetration, bullying victimization, and violence victimization in adolescence. In addition, the moderating role of protective factors (i.e., maternal sensitivity, positive peers, and school connectedness) on these associations were examined. Caregiver-infant dyads (N = 216; 72% Black/African American) were recruited as part of a longitudinal study on substance exposed youth. Data using multiple methods and informants (observations, interviews, caregiver, and child/youth self-reports) were collected from dyads in early childhood (EC, birth to 48 months), middle childhood (MC, i.e., 84 months), early adolescence (EA, M = 13.26 years, SD = .83) and later adolescence (LA, M = 15.08 years, SD = .83). A developmental cascading path model was tested. There were direct associations between EC maternal harsh parenting and aggression in MC. In turn, MC aggression was associated with higher violence victimization and bullying in EA. Finally, EA violence victimization was then associated with higher levels of bullying as well as victimization from bullying in LA. Consistent with predictions, there was also evidence that protective factors (i.e., maternal sensitivity and positive peers) moderated the impact of predictor variables on aggression and bullying outcomes. Specifically, maternal sensitivity moderated the link between EC and MC aggression, such that those with moderately high levels of maternal sensitivity showed a negative relation between EC and MC aggression, whereas those with low levels of maternal sensitivity showed continuity in aggression. Positive peer influence moderated the link between violence victimization in EA and bullying in LA, such that children high on both violence victimization and positive peers had the highest levels of bullying victimization.

Sex Differences in the Relationships between Forms of Peer Victimization and Reactive and Proactive Aggression in Schoolchildren

The original study investigated sex differences in the relationships between multiple forms of peer victimization (physical victimization, verbal victimization, and social exclusion) and subtypes of aggression (reactive aggression and proactive aggression) in schoolchildren. A self-report questionnaire assessing levels of peer victimization and aggression was administered to 3790 schoolchildren (1916 males and 1874 females) aged 11 to 17 (M = 13.19; SD = 1.17) from 10 middle schools in Hong Kong. The pure effect of each subtype of aggression were evaluated by statistically controlling for another subtype of aggression in analyses. Furthermore, participants were classified as non-aggressors, reactive aggressors, proactive aggressors, and reactive–proactive aggressors to investigate their differences in specific forms of peer victimization. Data were analyzed by hierarchical linear regression and ANOVA. The results showed: (1) Sex significantly moderated the relationship between specific forms of peer victimization and subtypes of aggression; (2) In males, reactive aggression was positively predicted by verbal victimization; proactive aggression was positively predicted by physical victimization and social exclusion, and negatively predicted by verbal victimization; (3) In females, reactive aggression was positively predicted by physical victimization and social exclusion; proactive aggression was negatively predicted by social exclusion; and (4) Reactive–proactive aggressors reported more physical victimization than other types of aggressors. The findings have significant implications for distinctive functions of reactive and proactive aggression and the need to develop differentiated interventions for male and female schoolchildren.

Parental Corporal Punishment and Peer Victimization in Middle Childhood: A Sex-Moderated Mediation Model of Aggression

There is a peak in peer victimization during middle childhood, with multiple negative consequences. Parental use of corporal punishment and child aggression are the most widely studied predictors of this phenomenon. The aim of the present study was to analyze whether parental use of corporal punishment affects peer victimization through child aggression. This mediation model was explored for both mothers and fathers and for both physical and relational forms of aggression and peer victimization. Furthermore, we also analyzed whether the mediation models were moderated by the sex of the child. Participants were 234 third graders (46% girls). Child aggression and victimization were measured by peers using the Mini Direct Indirect Aggression Inventory. Independent measures of mother's and father's use of corporal punishment were obtained from a PCA of items from the Parental Styles and Dimensions Questionnaire (PSDQ). Conditional process modeling was carried out using a macro for SPSS developed by Hayes (2013). Results indicated that aggression mediated the relation of parental corporal punishment to peer victimization. Some interesting moderating effects of sex in this mediation model were found; specifically, physical, and relational aggression mediated the relation of maternal corporal punishment to peer victimization only in boys. Few studies to date have addressed the connection between aggressive behavior and peer victimization as outcomes of corporal punishment, taking into consideration the role of parent's and child's sex, and both physical and relational forms of aggression and victimization during childhood.

Rumination as a Mediator of the Prospective Association Between Victimization and Bullying

Although there is evidence of concurrent associations between victimization and bully perpetration, it is still unclear how this relation unfolds over time. This study investigates whether victimization in childhood is a prospective risk factor for bully perpetration in early adolescence, and examines rumination as a socio-cognitive factor that may mediate this association. Participants included 553 third graders (43.2% boys; M_age = 9.85), with follow-up assessments when they were in fourth, seventh, and eighth grade. Results indicated that more frequent victimization in grades 3 and 4 was indirectly associated with bully perpetration in grade 8, through rumination in grade 7 about past victimization experiences in elementary school. This pattern remained regardless of whether the rumination elicited feelings of anger or sadness. Our findings demonstrate one pathway through which frequent victimization can lead to perpetration and underscore the important role of rumination in victims’ subsequent adjustment. Implications for future interventions are discussed.

The Temporal Precedence of Peer Rejection, Rejection Sensitivity, Depression, and Aggression Across Adolescence

We examined the temporal precedence between perceived peer rejection, rejection sensitivity, depression, and aggression in a sample of 544 adolescents (55.7% girls; M_age = 14.96 years at the first measured time point) assessed yearly from Grade 9 to Grade 12. Using developmental cascade modelling to analyze the data, our study supported the symptoms-driven and social process models, in that perceived rejection was preceded by either depression or aggression at different times across adolescence. Similarly, rejection sensitivity was also preceded by depression and/or aggression. Although depression initiated the cascade leading to rejection sensitivity, our model also supported a bidirectional relation across late adolescence as rejection sensitivity also predicted future depression. Overall, our findings provide support that internalizing and externalizing problems lead to interpersonal difficulties with peers, such as perceived rejection and demonstrate the unique role of rejection sensitivity with regard to depression and aggression independent from perceived peer rejection.

Prospective Associations between Popularity, Victimization, and Aggression in Early Adolescence

Recent research has highlighted an understudied phenomenon in the peer victimization literature thus far: the overlap between high status (i.e., popularity) and victimization. However, the research on this phenomenon has primarily been cross-sectional. The current investigation uses a longitudinal design to address two questions related to high-status victims. First, the present study examined prospective associations between popularity and two forms of indirect victimization (reputational victimization and exclusion). Second, this study examined elevated aggression as a consequence of high-status youth’s victimization (using self- and peer- reports of victimization). Participants were 370 adolescents (M_age = 14.44, range = 14.00–16.00; 56.5% girls) who were followed for 1 year. Both high and low levels of popularity were prospectively associated with reputational victimization. Moreover, popularity moderated the association between self-reported indirect victimization (but not peer-reported indirect victimization) and aggression. The results help build toward a more comprehensive understanding of both victimization and aggression in adolescence. Findings are discussed in terms of implications for a cycle of aggression in youth and the lowered effectiveness of bullying interventions in adolescence.

The Computations of hostile biases (CHB) model: Grounding hostility biases in a unified cognitive framework

Our behavior is partly a product of our perception of the world, and aggressive individuals have been found to have 'hostility biases' in their perception and interpretation of social information. Four types of hostility biases can be distinguished: the hostile attribution, interpretation, expectation, and perception bias. Such low-level biases are believed to have a profound influence on decision-making, and possibly also increase the likelihood of engaging in aggressive acts. The current review systematically examined extant research on the four types of hostility bias, with a particular focus on the associations between each type of hostility bias and aggressive behavior. The results confirmed the robust association between hostility biases and aggressive behavior. However, it is still unknown how exactly hostility biases are acquired. This is also caused by a tendency to study hostility biases separately, as if they are non-interacting phenomena. Another issue is that current approaches cannot directly quantify the latent cognitive processes pertaining to the hostility biases, thus creating an explanatory gap. To fill this gap, we embedded the results of the systematic review in a state-of-the-art computational framework, which provides a novel mechanistic account with testable predictions.

Will Victims Become Aggressors or Vice Versa? A Cross-Lagged Analysis of School Aggression

Peer aggression and victimization are ubiquitous phenomena in schools which warrant the attention of educators and researchers. The high connection between aggression and victimization behooves researchers to look into how the comorbidity of them develops over time. The present study investigated the associations between aggression and victimization over 3 years in early adolescence and whether these associations are moderated by gender and teacher support. Participants were 567 Grade 7, 8 and 9 students (49.38% girls) from 3 schools in Hong Kong. Over the course of study, they were asked to fill in a set of questionnaires that consisted of items related to peer aggression, victimization, and teacher support at 5 time points. Four models of cross-lagged relations between peer aggression and victimization were tested. The results supported a reciprocal model of peer aggression and victimization for both boys and girls although girls engaged in less peer aggression and victimization than boys. Further analyses also revealed that teacher support acted as a suppressor of the reciprocal relations. The present study sheds lights on intervention strategies that may remediate peer aggression and victimization in schools.

Hostile Intent Attribution and Aggressive Behavior in Children Revisited: A Meta-Analysis

To test specific hypotheses about the relation between hostile intent attribution (HIA) and children’s aggressive behavior, a multilevel meta‐analysis was conducted on 111 studies with 219 effect sizes and 29.272 participants. A positive association between HIA and aggression was found, but effect sizes varied widely between studies. Results suggested that HIA is a general disposition guiding behavior across a broad variety of contexts, whereas the strength of the relation between HIA and aggression depends on the level of emotional engagement. The relation is stronger for more reliable HIA measures, but is not stronger for reactive aggression or co‐morbid attention‐deficit hyperactivity disorder than for aggression in general. The importance of understanding specific moderators of effect size for theory development is discussed.

Emotional Underarousal and Overarousal and Engagement in Relational Aggression: Interactions between Relational Victimization, Physiological Reactivity, and Emotional Sensitivity

The present study examined if overarousal (i.e., dysregulation and high emotional sensitivity) and underarousal (i.e., fearlessness and emotional insensitivity) to peer stress, reflected in physiological reactivity and subjective emotional sensitivity, exacerbated risk for relational aggression in relationally victimized children. Participants were a community sample of 125 children (10-12 years, M = 11.34 years, SD = 0.89; 45% female). Teachers provided ratings of children's relational victimization and relational aggression. Children's physiological reactivity was assessed based on skin conductance level (SCL) reactivity and respiratory sinus arrhythmia (RSA) reactivity to a standardized peer rejection task. Children's subjective emotional sensitivity was assessed using self-reported ratings of distress to hypothetical relational provocation vignettes. Results indicated that relational victimization was significantly associated with relational aggression only for children with high SCL reactivity and high emotional sensitivity (i.e., physiological and subjective overarousal) and for children with low SCL reactivity and low emotional sensitivity (i.e., physiological and subjective underarousal); relational victimization did not predict relational aggression among children with high SCL reactivity but low emotional sensitivity or among children with low SCL reactivity but high emotional sensitivity. Relational victimization was also marginally more strongly associated with relational aggression for children displaying RSA augmentation. Results suggest emotional overarousal and underarousal may both serve as vulnerabilities for relational aggression among relationally victimized youth, and underscore the importance of including physiological and subjective indices of emotional reactivity in studies of aggression. Implications for theory and intervention are discussed.

The etiology of social aggression: a nuclear twin family study

BACKGROUND

Social aggression is a form of antisocial behavior in which social relationships and social status are used to damage reputations and inflict emotional harm on others. Despite extensive research examining the prevalence and consequences of social aggression, only a few studies have examined its genetic-environmental etiology, with markedly inconsistent results.

METHOD

We estimated the etiology of social aggression using the nuclear twin family (NTF) model. Maternal-report, paternal-report, and teacher-report data were collected for twin social aggression (N = 1030 pairs). We also examined the data using the classical twin (CT) model to evaluate whether its strict assumptions may have biased previous heritability estimates.

RESULTS

The best-fitting NTF model for all informants was the ASFE model, indicating that additive genetic, sibling environmental, familial environmental, and non-shared environmental influences significantly contribute to the etiology of social aggression in middle childhood. However, the best-fitting CT model varied across informants, ranging from AE and ACE to CE. Specific heritability estimates for both NTF and CT models also varied across informants such that teacher reports indicated greater genetic influences and father reports indicated greater shared environmental influences.

CONCLUSIONS

Although the specific NTF parameter estimates varied across informants, social aggression generally emerged as largely additive genetic (A = 0.15-0.77) and sibling environmental (S = 0.42-0.72) in origin. Such findings not only highlight an important role for individual genetic risk in the etiology of social aggression, but also raise important questions regarding the role of the environment.

Applying Social Cognitive Theory to Explore Relational Aggression across Early Adolescence: A Within- and Between-Person Analysis

In the past two decades, there has been a significant amount of research on children's relational aggression, which has been found to be associated with psychosocial problems. Longitudinal studies have examined changes in relational aggression during early adolescence in relation to individual characteristics; however, most studies compare individual differences between people with regard to rates of relational aggression. A shortcoming to the current literature is the lack of studies that use a multilevel approach to examine individual differences (between-person) as well as the extent to which individuals deviate from their own typical levels (within-person) over time. In this study, within- and between-person psychological and peer-related predictors of rates of relational aggression over time were examined. Participants included 1,655 students in 5th-8th grade (mean age: 13.01) from four public middle schools in the Midwest, which consisted 828 females and 827 males. In terms of race and ethnicity, 819 (49.5%) were African Americans, followed by 571 (34.5%) Whites, and 265 (16%) Others. Longitudinal data were collected over four waves across two years of middle school. The findings indicated that contrary to the hypothesis that relational aggression would increase over time, there was no significant growth across time. Age, gender, and race were not associated with relational aggression over time; however, consistent with the Social Cognitive Theory, changes in within-person impulsivity, anger, and peer delinquency were all positively related to increases in relational aggression. At the between-person level of analysis, depressive symptoms and peer delinquency were related to relational aggression. Findings suggest that school-based programs that address anger management, impulsivity, empathy, and victimization could help prevent relational aggression.

Experiences of physical and relational victimization in children with ADHD: The role of social problems and aggression

The social risk factors for physical and relational peer victimization were examined within a mixed-gender sample of children with and without attention-deficit/hyperactivity disorder (ADHD). Participants were 124 children (ages 8-12 years; 48% boys), with 47% exhibiting sub-clinical or clinical elevations in ADHD symptoms. ADHD and oppositional defiant disorder (ODD) symptom counts were assessed based on parent- and teacher-reports; parents rated children's social problems and teachers rated children's use of physical and relational aggression and experiences of physical and relational victimization. A multiple mediator model was used to test whether there were indirect effects of ADHD or ODD symptoms on physical and relational victimization through social problems, physical aggression, or relational aggression. At the bivariate level, ADHD and ODD symptoms were both significantly associated with higher rates of physical and relational victimization. In the mediational model, there were significant indirect effects of ADHD symptoms on relational victimization via social problems, of ODD on relational victimization via relational aggression, and of ODD symptoms on physical victimization via physical aggression. Results suggest that there are distinct risk factors implicated in the physical and relational victimization of youth with ADHD and that the co-occurrence of ODD symptoms is important to assess. Clinical implications for addressing victimization in children with ADHD are discussed.

Chronic peer victimization heightens neural sensitivity to risk taking

Although behavioral and experimental studies have shown links between victimization and antisocial behavior, the neural correlates explaining this link are relatively unknown. In the current study, we recruited adolescent girls from a longitudinal study that tracked youths' reports of peer victimization experiences annually from the second through eighth grades. Based on these reports, 46 adolescents were recruited: 25 chronically victimized and 21 nonvictimized. During a functional magnetic resonance imaging scan, participants completed a risk-taking task. Chronic peer victimization was associated with greater risk-taking behavior during the task and higher levels of self-reported antisocial behavior in everyday life. At the neural level, chronically victimized girls showed greater activation in regions involved in affective sensitivity, social cognition, and cognitive control, which significantly mediated victimization group differences in self-reported antisocial behavior.

Children's hostile intent attributions and emotional distress: What do parents perceive?

Traditionally, assessments of social information processing and associated emotional distress have used children's self-reports. We posit that additional informants, such as parents, may help illuminate the association between these variables and aggression. Our sample was composed of 222 dual-parent families of fourth-grade children (103 boys; 119 girls). Children responded to instrumental and relational provocations and their parents read the same scenarios and responded the way they believed their child would. Peer nominations provided aggression scores. We explored how means differed by provocation type (relational vs. instrumental), informant (mother, father, and child), and gender of child. The results also suggest that parent perceptions may effectively predict children's participation in relational and physical aggression, above and beyond the child's self-reports.

Interpersonal rejection sensitivity mediates the associations between peer victimization and two high-risk outcomes

BACKGROUND

Previous research has demonstrated a strong link between peer victimization and suicidal ideation and aggression. This study examined interpersonal rejection sensitivity as a mediator of these associations.

METHOD

Diagnostic interviews and assessments were administered to 80 psychiatrically hospitalized adolescents and their parents.

RESULTS

Interpersonal rejection sensitivity mediated the association between peer victimization and suicidal ideation as well as aggression after controlling for participant sex and mood disorder diagnosis.

CONCLUSION

Interpersonal rejection sensitivity influences the relation between peer victimization and mental health symptoms, including suicidal ideation and aggression. Assessing for and addressing heightened interpersonal rejection sensitivity among adolescents who have been victimized by peers may decrease the likelihood of negative mental health outcomes. Implications, especially for clinicians, are further discussed.

Peer victimization and changes in physical and relational aggression: The moderating role of executive functioning abilities

This study is the first to examine whether executive functioning (EF) abilities moderate longitudinal associations between peer victimization and engagement in physically and relationally aggressive behavior. Participants were 61 children (9-13 years, M = 10.68, SD = 1.28; 48% male) drawn from a partially clinical sample who were assessed at two time points, approximately 12 months apart. At time 1, children were administered a battery of EF tests; adult reports of children's relational and physical victimization and use of relational and physical aggression were collected. At time 2, adult-reported aggression was re-collected. Regression analyses tested whether EF ability moderated the association between peer victimization and increased engagement in aggression. Form-specific (e.g., physical victimization predicting physical aggression) and cross-form (e.g., physical victimization predicting relational aggression) models were tested. EF moderated the association between physical victimization and increases in physical aggression over time and between relational victimization and increases in relational aggression over time. Physical victimization predicted increases in physical aggression only among children with poor EF. However, relational victimization predicted increases in relational aggression for children with good EF skills but decreases in relational aggression for children with poor EF skills. Interaction effects for cross-form models were not significant. Results suggest that there are distinct risk factors implicated in children's engagement in physical and relational aggression. Established cognitive vulnerability models for engagement in physical aggression should not be assumed to apply to engagement in relational aggression.

Positively biased self-perceptions of peer acceptance and subtypes of aggression in children

There is a growing body of research linking children's positively biased self-perceptions with higher levels of aggression. This study extended this area of research by examining prospective associations of positively biased self-perceptions of peer acceptance with overt and relational aggression. In addition, moderating effects of peer rejection were examined to test the "disputed overestimation hypothesis," which posits that the link between bias and aggression is limited to children who are rejected by their peers. Using a two-wave longitudinal design, measures of peer-rated and self-perceived peer acceptance and peer-rated overt and relational aggression were obtained for 712 children in 3rd through 5th grades (386 girls and 326 boys). Positively biased perceptions led to increases in relational, but not overt, aggression. This pattern was observed even when the effects of gender, race, peer rejection, and overt aggression on relational aggression were controlled. Contrary to the disputed overestimation hypothesis, the prospective associations between bias and aggression did not vary as a function of children's peer rejection status, thus supporting the view that positive bias predicts future aggressive behavior, regardless of social status. The results are discussed in terms of the comparability with previous findings and practical implications.

Social Information Processing Mechanisms and Victimization: A Literature Review

The aim of the current literature review, which is based on 64 empirical studies, was to assess to what extent mechanisms of the Social Information Processing (SIP) model of Crick and Dodge (1994) are related to victimization. The reviewed studies have provided support for the relation between victimization and several social information processing mechanisms, especially the interpretation of cues and self-efficacy (as part of the response decision). The relationship between victimization and other mechanisms, such as the response generation, was only studied in a few articles. Until now research has often focused on just one step of the model, instead of attempting to measure the associations between multiple mechanisms and victimization in multivariate analyses. Such analyses would be interesting to gain more insight into the SIP model and its relationship with victimization. The few available longitudinal studies show that mechanisms both predict victimization (internal locus of control, negative self-evaluations and less assertive response selection) and are predicted by victimization (hostile attribution of intent and negative evaluations of others). Associations between victimization and SIP mechanisms vary across different types and severity of victimization (stronger in personal and severe victimization), and different populations (stronger among young victims). Practice could focus on these stronger associations and the interpretation of cues. More research is needed however, to investigate whether intervention programs that address SIP mechanisms are suitable for victimization and all relevant populations.

Moving against and away from the world: the adolescent legacy of peer victimization

Nicki Crick initiated a generative line of theory and research aimed at exploring the implications of exposure to overt and relational aggression for youth development. The present study aimed to continue and expand this research by examining whether early (second grade) and increasing (second-sixth grade) levels of victimization during elementary school contributed to youths' tendencies to move against, away from, or toward the world of peers following the transition to middle school. Youth (M age in second grade = 7.96 years, SD = 0.35; 338 girls, 298 boys) reported on their exposure to victimization and their social goals (performance-approach, performance-avoidance, or mastery). Teachers reported on youths' exposure to victimization and their engagement in antisocial, socially helpless, and prosocial behavior. Latent growth curve analyses revealed that early and increasing levels of both overt and relational victimization uniquely contributed to multifinality in adverse developmental outcomes, predicting all three social orientations (high conflictual engagement, high disengagement, and low positive engagement). The pattern of effects was robust across sex and after adjusting for youths' early social motivation. These findings confirm that both forms of victimization leave an enduring legacy on youths' social health in adolescence. Given that profiles of moving against and away from the world can contribute to subsequent psychopathology, understanding and preventing this legacy is pivotal for developing effective intervention programs aimed at minimizing the effects of peer adversity.

Relational aggression, victimization, and adjustment during middle childhood

A secondary analysis of the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development was conducted to test the mechanisms by which relational aggression in third grade was associated both directly and indirectly with relational victimization in sixth grade. A large sample (N = 1,035; 522 girls; M = 8.3 years old; SD = 0.23) and multiple informants (teacher, child, and parent report) and methods were used to test several theoretically driven hypotheses. Our path analysis model suggested evidence for both direct and indirect pathways consistent with the sequential social process model of peer harassment. Relational aggression was significantly associated with future relational victimization even after controlling for physical aggression and gender. Loneliness mediated the direct association between relational aggression and peer victimization. A second model testing the reverse direction of effect revealed that relational victimization in third grade predicted relational aggression in sixth grade and was associated with loneliness and depressive symptoms in fifth grade, but there was no evidence for any of the indirect pathways.

Implicit theories of personality and attributions of hostile intent: a meta-analysis, an experiment, and a longitudinal intervention

Past research has shown that hostile schemas and adverse experiences predict the hostile attributional bias. This research proposes that seemingly nonhostile beliefs (implicit theories about the malleability of personality) may also play a role in shaping it. Study 1 meta-analytically summarized 11 original tests of this hypothesis (N = 1,659), and showed that among diverse adolescents aged 13-16 a fixed or entity theory about personality traits predicted greater hostile attributional biases, which mediated an effect on aggressive desires. Study 2 experimentally changed adolescents' implicit theories toward a malleable or incremental view and showed a reduction in hostile intent attributions. Study 3 delivered an incremental theory intervention that reduced hostile intent attributions and aggressive desires over an 8-month period.

The impact of peer victimization on later maladjustment: mediating and moderating effects of hostile and self-blaming attributions

BACKGROUND

Evidence indicates that being a victim of bullying or peer aggression has negative short- and long-term consequences. In this study, we investigated the mediating and moderating role of two types of attributional mechanisms (hostile and self-blaming attributions) on children's maladjustment (externalizing and internalizing problems).

METHODS

In total, 478 children participated in this longitudinal study from grade 5 to grade 7. Children, parents, and teachers repeatedly completed questionnaires. Peer victimization was assessed through peer reports (T1). Attributions were assessed through self-reports using hypothetical scenarios (T2). Parents and teachers reported on children's maladjustment (T1 and T3).

RESULTS

Peer victimization predicted increases in externalizing and internalizing problems. Hostile attributions partially mediated the impact of victimization on increases in externalizing problems. Self-blame was not associated with peer victimization. However, for children with higher levels of self-blaming attributions, peer victimization was linked more strongly with increases in internalizing problems.

CONCLUSIONS

Results imply that hostile attributions may operate as a potential mechanism through which negative experiences with peers lead to increases in children's aggressive and delinquent behavior, whereas self-blame exacerbates victimization's effects on internalizing problems.

Paranoid thinking, suspicion, and risk for aggression: a neurodevelopmental perspective

This article represents an effort to extend our understanding of paranoia or suspicion and its development by integrating findings across clinical, developmental, and neuroscience literatures. We first define "paranoia" or paranoid thought and examine its prevalence across typically and atypically developing individuals and theoretical perspectives regarding its development and maintenance. We then briefly summarize current ideas regarding the neural correlates of adaptive, appropriately trusting interpersonal perception, social cognition, and behavior across development. Our focus shifts subsequently to examining in normative and atypical developmental contexts the neural correlates of several component cognitive processes thought to contribute to paranoid thinking: (a) attention bias for threat, (b) jumping to conclusions biases, and (c) hostile intent attribution biases. Where possible, we also present data regarding independent links between these cognitive processes and aggressive behavior. By examining data regarding the behavioral and neural correlates of varied cognitive processes that are likely components of a paranoid thinking style, we hope to advance both theoretical and empirical research in this domain.

A longitudinal path analysis of peer victimization, threat appraisals to the self, and aggression, anxiety, and depression among urban African American adolescents

Threat appraisals-individuals' perceptions of how stressful situations may threaten their well-being-are an important but understudied mechanism that could explain links between peer victimization and adjustment. The goal of the present study was to examine relationships between physical and relational victimization by peers, threats to the self, and aggression, anxiety, and depression to better understand the cognitive evaluations that make youth vulnerable to negative adjustment. The sample comprised two cohorts of African American adolescents (N = 326; 54 % female; M = 12.1; SD = 1.6) and their maternal caregivers, who participated in three waves of a longitudinal study. Path models revealed significant direct effects from Time 1 relational victimization, but not physical victimization, to Time 2 threat appraisals (i.e., negative self-evaluations and negative evaluations by others), controlling for Time 1 threat appraisals. Significant direct effects were found from Time 2 threats of negative evaluations by others to Time 3 youth-reported aggression, controlling for Time 1 and Time 2 aggression. Significant direct effects also were found from Time 2 threats of negative self-evaluations to T3 youth-reported depression, controlling for Time 1 and Time 2 depression. Overall, findings highlight the need to consider the role of threats to the self in pathways from peer victimization to adjustment and the implications these appraisals have for youth prevention and intervention efforts.

Physical and relational aggression in early adolescence: associations with narcissism, temperament, and social goals

This study examined adolescent narcissism, temperament (frustration and affiliation), and social goals in association with peer-reported physical and relational aggression (N = 384; 12-14 years). Narcissism was positively associated with dominance goals and negatively with closeness goals for peer interaction. Moreover, narcissism was positively associated with physical aggression via dominance goals for boys, and with relational aggression via dominance goals for both genders. Temperamental frustration and affiliation were both positively associated with relational aggression, but also interacted in their associations with this variable; affiliation was positively associated with relational aggression only at high levels of frustration. Supporting and extending existing research, the present findings suggest that adolescent personality and social goals are meaningfully associated with physical and relational aggression in the peer context.

Relational Aggression in Women during Emerging Adulthood: A Social Process Model

Two studies investigated potential mediators of the association between relational victimization and relational aggression. Self-report measures of aggressive behavior among peers, exclusivity, hostile attribution biases, and borderline personality disorder (BPD) symptoms were collected. In study 1, participants were 180 female emerging adults (M = 18.82, SD = 1.18). Both exclusivity and hostile attribution biases for relational provocations were found to partially mediate the association between relational victimization and relational aggression. In study 2, participants were 54 female emerging adults (M = 19.16, SD = 1.11). Symptoms of BPD were not found to mediate the association between relational victimization and relational aggression, yet unique associations with relational aggression were observed. The results add to recent research guided by a social process model in which links between victimization and aggression are more clearly understood.

Prospective associations between peer victimization and aggression

The current study involved a short-term longitudinal study of young children (M = 44.56 months, SD = 11.88, N = 103) to test the prospective associations between peer victimization and aggression subtypes. Path analyses documented that teacher-reported physical victimization was uniquely associated with increases in observed physical aggression over time. The path model also revealed that teacher-reported relational victimization was uniquely associated with statistically significant increases in observed relational aggression over time. Ways in which these findings extend the extant developmental literature are discussed.

Child and context characteristics in trajectories of physical and relational victimization among early elementary school children

Transactional models suggest that peer victimization results from both individual and context differences, and understanding these differences may point to important targets for prevention and interventions that reduce victimization. Multilevel modeling was used to examine within-person (aggression and emotional dysregulation), between-person (sex and age), and between-school (participation in a victimization prevention program) factors that influence changes in physical and relational victimization over the first three years of elementary school. Children (n = 423) reported their experiences of peer victimization at entry into Grade 1 and at the end of Grade 1, Grade 2, and Grade 3. On average, trajectories of both physical and relational victimization declined. However, for individual children, teacher-rated aggression was associated with increases in physical and relational victimization, while emotional dysregulation was associated with attenuation of longitudinal declines in physical victimization and increases in relational victimization. Individual differences in sex and age at entry into Grade 1 did not significantly influence victimization trajectories over Grades 1 to 3. Children who participated in the WITS® victimization prevention program showed significant declines in physical and relational victimization. Levels of victimization among nonparticipants remained stable. Implications of child and context characteristics for preventing peer victimization in elementary school are discussed.

Autonomic reactivity and romantic relational aggression among female emerging adults: moderating roles of social and cognitive risk

This study investigates the association between autonomic arousal in response to a relational stressor and the perpetration of relational aggression against romantic partners. In addition, the moderating role of social risk (relational victimization by a romantic partner) and cognitive risk (hostile attribution biases) was explored. Skin conductance, heart rate, and respiratory sinus arrhythmia during an experience of exclusion were assessed in a sample of female emerging adults (N=131). Participants provided self-reports of romantic relational aggression, romantic relational victimization, and hostile attribution biases. Results indicated that both heightened and blunted reactivity served as risk factors for the perpetration of romantic relational aggression depending on women's social and contextual risks. Implications for understanding the development of intimate aggression are discussed.

A latent growth curve analysis of early and increasing peer victimization as predictors of mental health across elementary school

Peer victimization has been implicated as a traumatic stressor that compromises children's long-term mental health, yet a dearth of prospective research documents lasting effects of early victimization. This study examined whether early (2nd grade) and increasing (2nd-5th grade) victimization predicted 5th grade depressive symptoms and aggressive behavior. Children (238 girls, 195 boys) reported on victimization and depressive symptoms; teachers reported on victimization and aggressive behavior. Latent growth curve analysis revealed that early and increasing victimization made unique contributions to depressive symptoms and aggressive behavior. Relational aggression was particularly likely to follow victimization in girls. This study reveals that victimization contributes to mental health over an extended period and elucidates the role of early versus increasing victimization, supporting the need for programs to prevent the pernicious mental health consequences of victimization.