Standard Deviation vs. Gini Coefficient: Effects of Different Indicators of Classroom Status Hierarchy on Bullying Behavior.

Classroom status hierarchy (the degree to which popularity is unequally distributed in a classroom) has often been examined as a predictor of bullying. Although most research has relied on an operationalization of status hierarchy as the classroom standard deviation (SD) of popularity, other fields (e.g., sociology, economics) have typically measured resource inequality using the Gini coefficient. This multilevel study examines the concurrent and prospective associations of both status hierarchy indicators (referred to as SD-hierarchy and Gini-hierarchy) with peer-reported bullying, controlling for key variables (i.e., the structure of the classroom status hierarchy, average classroom level of popularity). The final sample included 3017 students (45.3% self-identified as a boy; T1 Mage = 13.04, SD = 1.73, approximately 93% born in Finland) from 209 classrooms. Concurrently, classroom SD-hierarchy was positively, linearly associated with bullying, whereas there was a curvilinear (inverted U) association between Gini-hierarchy and bullying. No significant longitudinal associations were found. The findings suggest that Gini-hierarchy provides unique information beyond the SD-hierarchy.

Do Adolescents Adopt the Prosocial Behaviors of the Classmates They Like? A Social Network Analysis on Prosocial Contagion.

While the influence of high-status peers on maladaptive behaviors is well-documented, socialization processes of prosocial behavior through high-status peers remain understudied. This study examined whether adolescents' prosocial behavior was influenced by the prosocial behavior of the peers they liked and whether this effect was stronger when the peers they liked were also well-liked by their classmates. Three waves of data, six months apart, were collected among Chilean early adolescents who completed peer nominations and ratings at Time 1 (n = 294, Mage = 13.29, SD = 0.62; 55.1% male), Time 2 (n = 282), and Time 3 (n = 275). Longitudinal social network analyses showed that adolescents adopted the prosocial behavior of the classmates they liked - especially if these classmates were well-liked by peers in general. In addition, adolescents low in likeability were more susceptible to this influence than adolescents high in likeability. The influence resulted both in increases and - especially - decreases in prosocial behavior, depending on the level of prosociality of the liked peer. Findings suggest that likeability represents an important aspect of peer status that may be crucial for understanding the significance of peer influence with respect to prosocial behaviors during adolescence. Pre-Registration: https://osf.io/u4pxm .

Peer victimization and empathy for victims of bullying: A test of bidirectional associations in childhood and adolescence.

Anti-bullying interventions often assume that knowing how it feels to be bullied increases empathy for victims. However, longitudinal research on actual experiences of bullying and empathy is lacking. This study investigated whether within-person changes in victimization predicted changes in empathy over 1 year using random-intercept cross-lagged panel models. Self- and peer-reported victimization, and cognitive and affective empathy for victims were measured in a sample of 15,713 Finnish youth (Mage  = 13.23, SDage  = 2.01, 51.6% female; 92.5% had Finnish-speaking parents; data was collected in 2007-2009 when information about participants' race/ethnicity was not available due to ethical guidelines for the protection of personal information). Results indicated small, positive longitudinal associations from victimization to cognitive empathy. Implications for empathy-raising interventions are discussed.

Does defending victimized peers put youth at risk of being victimized?

Defending peers who have been bullied is often thought to put defenders at risk of becoming victimized themselves. The study investigated the concurrent and prospective associations between defending and (peer- and self-reported) victimization, and examined popularity and classroom norms as potential moderators. Participants included 4085 Finnish youth (43.9% boys; Mage  = 14.56, SD = .75; 97% born in Finland). Concurrently, defending was positively associated with self-reported victimization in classrooms with high bullying-popularity norms (b = .28, SE = .16). Defending was negatively associated with peer-reported victimization in classrooms with high defending-popularity norms (b = -.07, SE = .03). Defending was not significantly associated with future victimization, suggesting that it is generally not a risk factor for victimization.

Is there really a healthy context paradox for victims of bullying? A longitudinal test of bidirectional within-and between-person associations between victimization and psychological problems.

The finding that victims' psychological problems tend to be exacerbated in lower-victimization classrooms has been referred to as the "healthy context paradox." The current study has put the healthy context paradox to a strict test by examining whether classroom-level victimization moderates bidirectional within- and between-person associations between victimization and psychological adjustment. Across one school year, 3,470 Finnish 4th to 9th graders (Mage = 13.16, 46.1% boys) reported their victimization, depressive symptoms, anxiety, and self-esteem. Three types of multilevel models (cross-lagged panel, latent change score, and random-intercept cross-lagged panel) were estimated for each indicator of psychological adjustment. Findings indicated that the healthy context paradox emerges because classroom-level victimization moderates the prospective effect of victimization on psychological problems, rather than the effect of psychological problems on victimization. In classrooms with lower victimization, victims not only experience worse psychological maladjustment over time compared to others (between-person changes), but also higher maladjustment than before (absolute within-person changes).

Does defending affect adolescents' peer status, or vice versa? Testing the moderating effects of empathy, gender, and anti-bullying norms.

This study examined bidirectional associations between students' bully-directed defending behavior and their peer status (being liked or popular) and tested for the moderating role of empathy, gender, and classroom anti-bullying norms. Three waves of data were collected at 4-5-month time intervals among 3680 Finnish adolescents (Mage = 13.94, 53.0% girls). Cross-lagged panel analyses showed that defending positively predicted popularity and, to a larger degree, being liked over time. No moderating effect of empathy was found. Popularity was more strongly predictive of defending, and defending was more strongly predictive of status among girls than among boys. Moreover, the positive effects of both types of status on defending were-albeit to a limited extent-stronger in classrooms with higher anti-bullying norms.

Effects of the KiVa Anti-Bullying Program on Affective and Cognitive Empathy in Children and Adolescents.

OBJECTIVE: As empathy is an important predictor of both bullying and defending behavior, many anti-bullying interventions aim to increase empathy among students. However, little is known on whether these interventions enhance both affective and cognitive empathy, and whether some students are more responsive than others to empathy-raising efforts. This study examined the effects of the Finnish anti-bullying program KiVa on changes in self-reported affective and cognitive empathy and tested whether these effects varied depending on students' gender, initial levels of empathy, peer-reported bullying, and peer-perceived popularity, as well as school type (primary versus secondary school) and classroom bullying norms. METHOD: Multilevel structural equation modeling analyses were conducted on pretest and posttest (1 year later) data from a sample of 15,403 children and adolescents (Mage = 13.4; 51.5% girls) in 399 control and 462 intervention classrooms from 140 schools participating in the evaluation of KiVa in 2007-2009. RESULTS: KiVa had a positive effect on affective empathy, but not cognitive empathy. The effects of the program on both types of empathy did not depend on students' gender, initial levels of empathy, bullying, or popularity, nor on school type or classroom bullying norms. CONCLUSION: Findings suggest that KiVa can raise students' affective empathy regardless of students' gender, status, initial empathy, or levels of bullying, and regardless of school type or classroom bullying norms.

Intention to Stop Bullying following a Condemning, Empathy-Raising, or Combined Message from a Teacher - Do Students' Empathy and Callous-Unemotional Traits Matter?

Knowing which intervention strategies work best and for which student is essential for teachers when they intervene in cases of bullying. The effects of teachers' (1) condemning, (2) empathy-raising, and (3) combined (including elements of both) messages on students' intention to stop bullying were tested in a between-subject experimental design. A total of 277 seventh grade students (Mage = 12.93, SD = 0.49; 47% female) were asked to imagine they had bullied a peer and were invited to a discussion with a teacher. They saw a video vignette with one of the above messages. Hierarchical regression analyses indicated that students' intention to stop bullying was highest among those who saw the combined message. Callous-unemotional traits were negatively, and affective and cognitive empathy positively associated with intention to stop bullying. Students' level of cognitive empathy moderated the relative effect of the condemning message on intention to stop bullying. At low levels of cognitive empathy, the condemning message was the least effective, whereas among those with high cognitive empathy, all messages were equally likely to lead to intention to stop bullying. Together, the findings suggest that for educators intervening in bullying among adolescents, an approach involving both condemning and empathy-raising messages is the 'best bet', most likely to lead to intention to stop bullying.

Bidirectional Associations of Prosocial Behavior with Peer Acceptance and Rejection in Adolescence.

As most studies on the link between peer status and prosocial behavior are cross-sectional, conducted with children, and operationalize status as the difference between acceptance and rejection, it remains unclear whether peer acceptance and rejection are consequences or prerequisites of prosocial behavior in adolescence. To fill this gap, this study examines the bidirectional associations of prosocial behavior with peer acceptance and peer rejection with data collected at 3 time points, 6 months apart, in a sample of 660 early Chilean adolescents (M = 12.94, SD = 0.62; 55.1% boys). Cross-lagged panel analyses showed that prosocial behavior positively predicted future peer acceptance, whereas peer acceptance had no significant effect on future prosocial behavior. The association between rejection and prosocial behavior was negative and bidirectional between Time 1 and Time 2. When a new academic year began, between Time 2 and Time 3, prosocial behavior negatively predicted rejection, whereas rejection in the previous grade level was positively associated with prosocial behavior at the beginning of the next grade. Multi-group panel analyses did not detect significant differences between boys and girls in the cross-lagged associations of prosociality with peer acceptance and peer rejection. The results suggest that acting prosocially can make adolescents better liked by their peers and highlight the possible importance of the transition to a new academic year for the prosocial behavior of previously rejected students. Implications for future research on peer relations are discussed.

Bullying Prevention in Adolescence: Solutions and New Challenges from the Past Decade.

Bullying among youth at school continues to be a global challenge. Being exposed to bullying may be especially hurtful in adolescence, a vulnerable period during which both peer group belonging and status become key concerns. In the current review, we first summarize the effectiveness of the solutions that were offered a decade ago in the form of anti-bullying programs. We proceed by highlighting some intriguing challenges concomitant to, or emerging from these solutions, focusing especially on their relevance during adolescence. These challenges are related to (1) the relatively weak, and highly variable effects of anti-bullying programs, (2) the complex associations among bullying, victimization, and social status, (3) the questions raised regarding the beneficial (or possibly iatrogenic) effects of peer defending, and (4) the healthy context paradox, that is, the phenomenon of remaining or emerging victims being worse off in contexts where the average levels of victimization decrease. We end by providing some suggestions for the next decade of research in the area of bullying prevention among adolescents.

Different Approaches to Address Bullying in KiVa Schools: Adherence to Guidelines, Strategies Implemented, and Outcomes Obtained.

We examined the extent to which school personnel implementing the KiVa® antibullying program in Finland during 2009-2015 systematically employed the program-recommended approaches (confronting or non-confronting), used one or the other depending on the bullying case (case-specific approach), or used their own adaptation when talking to perpetrators of bullying, and whether they organized follow-up meetings after such discussions. In addition to investigating adherence to program guidelines, we tested how effective these different approaches were in stopping bullying. Finally, we tested the contribution of follow-up meetings and the number of years KiVa had been implemented in a school to the effectiveness of the interventions, using reports from both school personnel and victimized students. The data were collected annually across 6 years via online questionnaires and included responses from 1221 primary and secondary schools. The school personnel were more likely to use the confronting approach than the non-confronting approach. Over time, rather than sticking to the two program-recommended approaches, they made adaptations (e.g., combining the two; using their own approach). Two-level regression analyses indicated that the discussions were equally effective, according to both personnel and victimized students, when the confronting, non-confronting, or a case-specific approach had been used. The discussions were less effective when the personnel used their own adaptation or could not specify the method used. Perceived effectiveness was higher in primary school and when follow-up meetings were organized systematically after each intervention, but unrelated to the number of years KiVa had been implemented.

Classroom Status Hierarchy Moderates the Association between Social Dominance Goals and Bullying Behavior in Middle Childhood and Early Adolescence.

Social dominance goals represent desires to be powerful and prominent among peers. Previous studies have documented that endorsing social dominance goals is positively associated with bullying behavior. However, little is known about how classroom context moderates the social dominance goals-bullying association. The present study examined the role of classroom status hierarchy in the longitudinal association between social dominance goals and bullying in a sample of 1,603 children attending 17 grade 3 classrooms (n = 558, 46.2% girls, Mage = 9.33 years, SD = 0.44), 15 grade 4 classrooms (n = 491, 45.0% girls, Mage = 10.31 years, SD = 0.38) and 16 grade 7 classrooms (n = 554, 49.3% girls, Mage = 13.2 years, SD = 0.46) in China, followed for 1 year. Classroom peer status hierarchy was assessed by the within-classroom standard deviation in perceived popularity. Social dominance goals were obtained through self-reports. Bullying was measured via peer nomination. The multilevel models revealed that social dominance goals at Wave 1 predicted increases in bullying at Wave 2 only in classrooms with higher status hierarchies, after controlling for gender, grade, classroom size, and classroom gender distribution. These findings indicate that children who strive for social dominance goals are more likely to bully others when power is less equally distributed in the classroom.

Classroom Popularity Hierarchy Predicts Prosocial and Aggressive Popularity Norms Across the School Year.

This study examined the coevolution of prosocial and aggressive popularity norms with popularity hierarchy (asymmetries in students' popularity). Cross-lagged-panel analyses were conducted on 2,843 secondary school students (Nclassrooms  = 120; Mage  = 13.18; 51.3% girls). Popularity hierarchy predicted relative change in popularity norms over time, but not vice versa. Specifically, classrooms with few highly popular and many unpopular students increased in aggressive popularity norms at the beginning of the school year and decreased in prosocial popularity norms at the end of the year. Also, strong within-classroom asymmetries in popularity predicted relatively higher aggressive popularity norms. These findings may indicate that hierarchical contexts elicit competition for popularity, with high aggression and low prosocial behavior being seen as valuable tools to achieve popularity.

Why does decreased likeability not deter adolescent bullying perpetrators?

This study examines why the lower likeability of bullying perpetrators does not deter them from engaging in bullying behavior, by testing three hypotheses: (a) bullying perpetrators are unaware that they are disliked, (b) they value popularity more than they value likeability, (c) they think that they have nothing to lose in terms of likeability, as they believe that their targets and other classmates would dislike them anyway, regardless of their behavior. The first two hypotheses were examined in Study 1 (1,035 Dutch adolescents, M age = 14.15) and the third hypothesis was examined in Study 2 (601 Dutch adolescents, M age = 12.92). Results from regression analyses showed that those higher in bullying were not more likely to overestimate their likeability. However, they were more likely than others to find being popular more important than being liked. Moreover, those higher in bullying were more likely to endorse the belief that the victimized student or the other classmates would have disliked a bullying protagonist (in vignettes of hypothetical bullying incidents) before any bullying started. These findings suggest that adolescent bullying perpetrators may not be deterred by the costs of bullying in terms of likeability, possibly because they do not value likeability that much (Hypothesis 2), and because they believe they hardly have any likeability to lose (Hypothesis 3).

The Longitudinal Role of Self-Concept Clarity and Best Friend Delinquency in Adolescent Delinquent Behavior.

Adolescence tends to be characterized by a temporary peak in delinquent behavior, and friends in particular play a key role in the initiation and the development of delinquency. However, adolescents differ in their susceptibility to friends' influence on delinquency. Especially adolescents who are less certain about who they are might show more delinquent behavior, and might be more susceptible to their friends' behaviors, as friends are also crucial for adolescents' identity formation. In addition to examining the main effects of best friend's delinquency and self-concept clarity on the development of adolescents' delinquency, the current study scrutinized whether self-concept clarity moderated the longitudinal association between adolescents' and their best friends' self-reported delinquent behavior. The current study examined whether best friend delinquency and adolescent self-concept clarity were related to the development of adolescents' delinquency, and whether self-concept clarity moderated the relation between adolescent and best friend delinquency. Dutch adolescents (N = 497, Mage Wave 1 = 13 years, 287 boys) and their best friends participated across six annual waves. Both adolescents and best friends reported on their delinquency and adolescents reported on their self-concept clarity. Adolescent delinquency linearly declined, and although adolescents' and best friends' delinquency levels were related, changes in delinquency of adolescents and best friends were not. Adolescents low on self-concept clarity reported higher levels of delinquency. Self-concept clarity also moderated the relation between adolescent and best friend delinquency levels, with stronger relations observed for adolescents with lower self-concept clarity. Future research should examine the protective role of self-concept clarity not only against delinquent behavior, but also against susceptibility to peer influence.

School Bullies' Intention to Change Behavior Following Teacher Interventions: Effects of Empathy Arousal, Condemning of Bullying, and Blaming of the Perpetrator.

This study examines how bullies' perceptions of how they were treated by a teacher (or other school personnel) during discussions aimed at putting an end to bullying influenced their intention to change their behavior. After each discussion, which took place as part of the implementation of an anti-bullying program, bullies anonymously reported the extent to which they felt that the teacher aroused their empathy for the victim, condemned their behavior, or blamed them. Half of the schools implementing the program were instructed to handle these discussions in a confrontational way-telling the bully that his behavior is not tolerated-while the other half were instructed to use a non-confronting approach. Schools were randomly assigned to one of the two approaches. A total of 341 cases (188 in primary and 153 in secondary schools) handled in 28 Finnish schools were analyzed. Regression analyses showed that attempts at making bullies feel empathy for the victim and condemning their behavior both increased bullies' intention to stop. Blaming the bully had no significant effect. Bullies' intention to change was the lowest when both empathy-arousal and condemning behavior were low. The effects of empathy arousal were stronger when condemning the behavior was low (and vice versa), suggesting that teachers tackling bullying should make sure to use at least one of these strategies. When choosing not to raise the child's empathy, clear reprobation of the behavior is key.

Inequality matters: classroom status hierarchy and adolescents' bullying.

The natural emergence of status hierarchies in adolescent peer groups has long been assumed to help prevent future intragroup aggression. However, clear evidence of this beneficial influence is lacking. In fact, few studies have examined between-group differences in the degree of status hierarchy (defined as within-group variation in individual status) and how they are related to bullying, a widespread form of aggression in schools. Data from 11,296 eighth- and ninth-graders (mean age = 14.57, 50.6 % female) from 583 classes in 71 schools were used to determine the direction of the association between classroom degree of status hierarchy and bullying behaviors, and to investigate prospective relationships between these two variables over a 6-month period. Multilevel structural equation modeling analyses showed that higher levels of classroom status hierarchy were concurrently associated with higher levels of bullying at the end of the school year. Higher hierarchy in the middle of the school year predicted higher bullying later in the year. No evidence was found to indicate that initial bullying predicted future hierarchy. These findings highlight the importance of a shared balance of power in the classroom for the prevention of bullying among adolescents.

The longitudinal role of classroom defending norms in victims' psychological adjustment, causal attributions, and social comparisons.

Frequent exposure to victimization by peers is related to greater psychological problems. It is often assumed that peer victimization is associated with fewer psychological problems in classrooms where defending victims of bullying is common (i.e., a norm). The few studies testing this claim have been cross-sectional and have produced mixed findings. The current preregistered study examined whether the prospective link between victimization and psychological adjustment (i.e., depressive symptoms and self-esteem) was moderated by classroom defending norms. Moreover, we aimed to explain why defending norms may have either beneficial or adverse effects on victims' adjustment, by focusing on two cognitive processes: victims' causal attributions and social comparisons. Three waves of data were collected among 3,470 Finnish fourth- to ninth-grade students from 227 classrooms (Mage = 13.04, 50.1% girls). Multilevel regression analyses showed that nonvictimized youth benefited from high defending norms, whereas victims' psychological adjustment did not vary as a function of defending norms. Therefore, no mediation analyses were conducted. Nonpreregistered additional analyses indicated that stable victims had greater psychological problems and higher self-blame over time in classrooms with higher defending norms. Thus, even though the majority of students seem to profit from defending norms, this might not be true for those who most urgently need help. (PsycInfo Database Record (c) 2024 APA, all rights reserved).