Introduction to the special section on social norms and behavioral development

This introduction outlines the goals for the special section on social norms and behavioral development. The study of social norms has attracted much interest in peer relations research, and has turned attention to group-level processes, often defined based on the classroom, which create and sustain shared meanings that impact adolescent behavioral and social adjustment. Norms can be differentiated in three ways. First, prescriptive or injunctive norms can be distinguished from descriptive norms. Second, a distinction can be made between what is salient for all classmates or for a subgroup of norm setters, in particular popular peers. Third, social norms can be distinguished from perceived norms. The contributions to this special section invite debate on the future of research on norms, and suggest numerous avenues for further research, with hopes that an understanding of how social norms affect social development will better inform peer relations research as well as norm-based interventions

Toward understanding the functions of peer influence:A summary and synthesis of recent empirical research

Compelling evidence demonstrates that peer influence is a pervasive force during adolescence, one that shapes adaptive and maladaptive attitudes and behaviors. This literature review focuses on factors that make adolescence a period of special vulnerability to peer influence. Herein, we advance the Influence-Compatibility Model, which integrates converging views about early adolescence as a period of increased conformity with evidence that peer influence functions to increase affiliate similarity. Together, these developmental forces smooth the establishment of friendships and integration into the peer group, promote interpersonal and intragroup compatibility, and eliminate differences that might result in social exclusion

On the microfoundations of the link between classroom social norms and behavioral development

This article focuses on the link between social norms and behavioral development as presented in research on norms regarding bullying and aggression. The aim is to present a conceptual framework for how classroom norms may explain children's decisions to defend others or refrain from defending. Norms emerge from group consensus about what is appropriate in given social circumstances, and can also shape, constrain, and redirect behavior at the individual level. The study of norms has gained much attraction in peer relation research, and has turned attention to group-level processes, often defined at the classroom level, which create and sustain shared meanings that impact behavioral and social adjustment. Norm conformity, pluralistic ignorance, and power balance are presented as potential micro-level mechanisms for the link between classroom popularity (or rejection) norms and defending behavior. Directions for further research are discussed, including the need to assess and test the microfoundations directly, examine gender-specific versus common norms, focus on competing classroom norms, test developmental effects of norms, examine the impact of teachers on social norms, and pay attention to the influence of personal norms

Bullying as a Group Process in Childhood:A Longitudinal Social Network Analysis

This study investigates the dynamic interplay between bullying relationships and friendships in a sample of 481 students in 19 elementary school classrooms (age 8-12 years; 50% boys). Based on a relational framework, it is to be expected that friendships would be formed when two children bullied the same person and that children would start to bully the victims of their friends. Similarly, it is to be expected that friendships would be formed when two children were victimized by the same bully and that children would become victimized by the bullies of their friends. Longitudinal bivariate social network analysis supported the first two hypotheses but not the latter two. This study provides evidence for group processes in bullying networks in childhood

Long-Term Effects of Acceptance and Rejection by Parents and Peers on Educational Attainment:A Study from Pre-Adolescence to Early Adulthood

Acceptance and rejection by parents and peers play an important role in pre-adolescents’ educational outcomes. Prior research focused on either parents or peers, did not encompass effects into adulthood, or considered either acceptance or rejection. This study investigated the relation between parental and peer acceptance and rejection, and their interplay, in pre-adolescence and educational attainment in early adulthood. A sample of 2229 pre-adolescents (M(age) T1 = 11.11, SD = 0.56; 50.7% girls) was followed to early adulthood (M(age) T5 = 22.29, SD = 0.65). Ordinal logistic regression showed that pre-adolescents’ perceived parental acceptance was positively related to educational attainment in early adulthood, whereas peer rejection was negatively related, even when WISC score and socioeconomic status were considered. No interaction effects were found, revealing no “dual-hit effect” of being rejected by parents and peers, no “dual-miss effect” of being accepted by parents and peers, and no effects of acceptance in one context (i.e., parents or peers) buffering the negative effect of rejection in the other context. The findings underscore unique and long-term links of parental acceptance and peer rejection with early adults’ educational attainment, underlining the importance of not only peers but also parents in adolescence. These insights can be used in promoting long-term educational outcomes through relationships with parents and peers

Disentangling dyadic and reputational perceptions of prosociality, aggression, and popularity in explaining friendship networks in early adolescence

This study examined the differential effects of two forms of adolescents' perceptions of peers' prosociality, aggression, and popularity, on friendship selection. Individuals' reports of their peers' behaviors (dyadic perceptions) and the aggregated classmates' reports (reputational perceptions) were disentangled. The findings indicated that adolescents were more likely to befriend classmates widely perceived as prosocial (reputational perception) and were less likely to befriend classmates they perceived as aggressive (dyadic perception). For popularity, the effect of dyadic perception disappeared when including the reputational perception. The findings highlight the differences between the dyadic and reputational perceptions of peer behavior. Not only dyadic perceptions of behaviors but also reputational perceptions exert a role in befriending peers

Who Sets the Aggressive Popularity Norm in Classrooms? It's the Number and Strength of Aggressive, Prosocial, and Bi-Strategic Adolescents

Previous work has shown that during adolescence, classrooms vary greatly in the extent to which aggression is rewarded with popularity (the ‘popularity norm’). Aggressive popularity norms may promote the proliferation of aggression and negatively affect the classroom climate. It is, however, unknown how these norms emerge in the first place. This longitudinal study therefore investigated whether aggressive popularity norms can be predicted by the classroom composition of students. We examined whether the prevalence of six student types - socially and non-socially dominant prosocial, aggressive, and bi-strategic adolescents (adolescents who are both highly prosocial and aggressive) - contributed to the norm by establishing a popularity hierarchy: strong classroom asymmetries in popularity. We collected peer-nominated data at three secondary schools in the Netherlands (SNARE-study; Nstudents = 2843; Nclassrooms = 120; 51.4% girls; Mage = 13.2). Classroom-level regression analyses suggest that the classroom percentage of socially dominant aggressive and bi-strategic students predicted higher aggressive popularity norms, both directly and by enhancing the classrooms’ popularity hierarchy. Instead, the presence of non-socially dominant aggressive students and socially dominant prosocial students contributed to lower aggressive popularity norms. Socially dominant prosocial students also buffered against the role of socially dominant aggressive adolescents in the aggressive popularity norm (moderation), but not against bi-strategic adolescents’ role. Our findings indicate that interventions aimed at reducing aggressive popularity norms should first and foremost take the composition of classrooms at the start of the school year into account; and should not only encourage prosocial behavior, but also actively discourage aggression

Friendship selection and influence processes for popularity in early and mid-adolescents

Introduction This study examined the effect of popularity levels on friendship selection and friends' influence on popularity levels in early and mid-adolescence. Methods Participants were 4205 Spanish adolescents (M-age = 13.1 years at Wave 1; 48% girls) belonging to 160 classrooms in two waves. Adolescents were asked about their friendships and the popularity of their classmates. Results Longitudinal social network analyses showed that adolescents preferred similarly popular peers as friends. High popular classmates were more attractive as friends, particularly in early adolescence. Popular adolescents were more selective in their friendship nominations and adolescents with popular friends became more popular over time. These two effects were only significant in mid-adolescents, although comparative analyses showed a similar tendency at both age groups. Conclusions This study highlights the importance of popularity levels in adolescents' friendship selection and suggests that popularity, at the individual and group level, plays a relevant role in social development. Implications adapted to the different selection and influence processes in early and mid-adolescence are discussed

The Interplay of Adolescents' Aggression and Victimization with Friendship and Antipathy Networks within an Educational Prosocial Intervention

How the interplay between peer relationships and behaviors unfolds and how this differs between classrooms is an understudied topic. This study examined whether adolescents befriend or dislike peers whom they consider as aggressor or victim and whether these results differ in classrooms that received an intervention to promote prosocial behavior compared to classrooms without the intervention. The sample was composed of 659 seventh graders (M-age = 12.32; 48% girls) from nine intervention and seven control classrooms in eight schools in Santiago, Chile. It was hypothesized that adolescents in intervention classrooms would be less befriended and more disliked by classmates who considered them as aggressors, and more befriended and less disliked by classmates who considered them as victims, compared to control classrooms. Longitudinal multiplex social network analyses (RSiena) indicate that antipathies toward peers considered as aggressive and victimized were significantly lower in intervention classrooms than in control classrooms, but no significant differences were found for friendships. These findings suggest that the impact of an educational intervention may go beyond changing individual behavior and extend to the way peer relations develop in classrooms

The Impact of Academic Achievement and Parental Practices on Depressive Symptom Trajectories Among Chinese Adolescents

Though depressive symptoms tend to increase in early adolescence, the trajectories of these symptoms may vary strongly. This longitudinal study investigated the extent to which the distinct developmental trajectories of depressive symptoms were predicted by adolescents' academic achievement and perceived parental practices in a sample of Chinese young adolescents (N = 2,576). The results showed four trajectory profiles of depressive symptoms: low-stable (75%), low-increasing (11%), high-stable (9%), and high-decreasing (5%). Adolescents with high academic achievement were more likely to be classified into the low-stable, low-increasing, and high-decreasing profiles than into the high-stable depressive symptom profile. Moreover, students who perceived greater parental autonomy support were more likely to be in the low-stable and low-increasing profiles than the high-stable profile, whereas adolescents perceiving more parental psychological control had higher odds of being in the low-increasing rather than the low-stable profile. Parental educational involvement was unrelated to students' depressive symptom trajectories. In sum, Chinese adolescents with higher academic achievement and who perceived more parental autonomy support, and less psychological control, were at lower risk of experiencing depressive symptoms. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s10802-021-00826-9