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 .

BACKGROUND: Peer influence on risky behavior is particularly potent in adolescence and varies by gender. Smoking prevention programs focused on peer-group leaders have shown great promise, and a social influence model has proven effective in understanding adult smoking networks but has not been applied to adolescent vaping until 2023. This work aims to apply a social influence model to analyze vaping by gender in a high school network.
METHODS: A high school\'s student body was emailed an online survey asking for gender, age, grade level, vape status, and the names of three friends. Custom Java and MATLAB scripts were written to create a directed graph, compute centrality measures, and perform Fisher\'s exact tests to compare centrality measures by demographic variables and vape status.
RESULTS: Of 192 students in the school, 102 students responded. Students who vape were in closer-knit friend groups than students who do not vape (p < .05). Compared to males who vape, females who vape had more social ties to other students who vape, exhibiting greater homophily (p < .01). Compared to females who do not vape, females who vape were in closer-knit friend groups (p < .05) and had more ties to other students who vape (p < .01).
CONCLUSIONS: Differences in vaping by social connectedness and gender necessitate school and state policies incorporating the social aspect of vaping in public health initiatives. Large-scale research should determine if trends can be generalized across student bodies, and more granular studies should investigate differences in motivations and social influence by demographic variables to individualize cessation strategies.

The phenomenon of suicide contagion: some individuals, especially vulnerable young people, exhibit increased susceptibility to suicidal ideation when exposed to the suicide of other people. Significant research suggests that exposure to media portrayals, suicide groups and peer suicides may lead to suicide contagion. Prevalent psychosocial and cultural factors in Nepal such as interpersonal conflict, domestic violence, gender inequity and social exclusion probably contribute to suicidal behaviour. This case study investigates a high school student in a rural mountainous community in Nepal, who attempted suicide by hanging following his girlfriend\'s suicide, and demonstrates how peer suicide exposure prompts imitative behaviour in a vulnerable young person and confirms suicide grief as an underrepresented risk factor. Prompt, supportive interventions for high-risk grievers and societal prevention strategies tailored to adolescents are essential to curb imitative deaths.

Adolescents who befriend online game using peers may be at risk for initiated and continued excessive game use (online gaming use homophily). The present article examined how adolescents\' severity of online gaming use related to their friends\' online gaming behavior bi-directionally across a semester (peer selection or peer influence effect). Students from two universities completed three waves of online surveys within four and a half months (N = 3079; 33.6% female; Mage = 19.16; SD = 0.97). Random-intercepts, Cross-Lagged Panel Model (RI-CLPM) analyses revealed that peer selection and peer influence both promote online gaming use homophily in adolescents\' friendship groups. Furthermore, participants were more likely to form new friendships with peers exhibiting similar online gaming behavior as their behavior, subsequently reinforcing their online gaming use behaviors within these relationships. These social processes may exhibit a time lag among girls, which needs to be confirmed through longer-term follow-up. In general, findings suggest that effective prevention programs targeting excessive online gaming should not only focus on promoting social influence skills but also consider the structure of peer environments.

OBJECTIVE: Contemporary school racial segregation is a manifestation of structural racism shown to harm Black children\'s health. Yet, evidence on its long-term impacts throughout life, as well as effects among children of other racial backgrounds, is sparse.
METHODS: Data on Black and White children were drawn from the National Longitudinal Study of Adolescent to Adult Health. Using multilevel models, we estimated associations between district-level school segregation and measures of short-term and long-term health, including self-reported outcomes and biomarkers. Models were run separately for Black and White children, adjusting for individual- and district-level covariates. We further carried out subgroup analyses by school racial composition (i.e., majority White vs. majority non-White schools).
RESULTS: School segregation was associated with worsened short- and long-term risk factors of chronic disease among both Black and White students in terms of exercise and body mass index, but only in majority non-White schools. Moreover, Black students in these schools demonstrated less adolescent drinking and smoking with increased racial segregation and better self-reported health in young adulthood.
CONCLUSIONS: Our findings suggest that segregated majority non-White schools may be targets of systemic disinvestment and may therefore lack sufficient resources for physical education or nutrition. Improvements in some outcomes among Black children may reflect peer influence (i.e., Black adolescents generally drink less than White adolescents), reduced exposure to interpersonal racism from White peers, or positive health fostered by feelings of belonging in Black community. Ensuring all students go to schools with the resources they need to thrive may have positive spillovers for population health.

It is well-established that unstructured unsupervised socializing with peers (UUS) motivates deviance while in that specific context. In this article, we extend this situational view by arguing that repeated UUS may also gradually shape adolescents\' norms and decision making beyond the situation. Specifically, we argue that UUS promotes short-term mindsets, i.e., an increased focus on present rewards at the expense of considering future consequences. We test this hypothesis with fixed-effects models, using longitudinal data from a representative sample of 1,675 adolescents from Zurich, Switzerland. Consistent with our preregistered predictions, more frequent UUS is associated with increased short-term mindsets. Thus, our finding suggests that the effects of UUS on later deviance might be driven by becoming more present-oriented. This link offers new insights into the developmental pathways toward adolescent delinquency and offers a potential target for intervention.
UNASSIGNED: The online version contains supplementary material available at 10.1007/s40865-024-00249-2.

Adolescence is a period of normative heightened sensitivity to peer influence. Individual differences in susceptibility to peers is related to individual differences in neural sensitivity, particularly in brain regions that support an increasingly greater orientation toward peers. Despite these empirically-established patterns, the more specific psychosocial and socio-cognitive factors associated with individual differences in neural sensitivity to peer influence are just beginning to gain research attention. Specific features of the factors that contribute to how adolescents process social information can inform understanding of the psychological and neurobiological processes involved in what renders adolescents to be more or less susceptible to peer influences. In this paper, we (1) review the literature about peer, family, and broader contextual influences on sensitivity to peers\' positive and negative behaviors, (2) outline components of social information processing theories, and (3) discuss features of these models from the perspectives and social cognitive development and social neuroscience. We identify gaps in the current literature that need to be addressed in order to gain a more comprehensive view of adolescent neural sensitivity to peer influence. We conclude by suggesting how future neuroimaging studies can adopt components of this social information processing model to generate new lines of research.

This study focuses on the intricate connections among youth sports, personal development, and skill acquisition in contemporary China. Building upon established theoretical frameworks, the study aims to unravel the intricate interplay among various variables. Employing a robust methodology that accounts for mediation and moderation effects and with a sample of 808 individuals representing diverse demographics, the findings shed light on the significant influence of family structure, particularly the prevalence of extended family arrangements, on an individual\'s character development. Furthermore, the study underscores the pivotal role of personal characteristics, particularly self-esteem, in shaping admirable traits. The research identifies several contributing factors to positive character development, including active participation in sports, parental support, accessibility to sports facilities, positive peer influence, and high self-esteem. Parents play a crucial role in mitigating the adverse effects of peer pressure by offering positive reinforcement and serving as role models. These findings hold important implications for youth development programs, emphasizing the vital role of parents in guiding character development, particularly in the context of peer pressure.

The ways that psychopathology manifests in adolescence have shifted dramatically over the past twenty-five years, with rates of many externalizing behaviors declining substantially while rates of anxiety and depressive disorders have skyrocketed. This paper argues that understanding these changes requires rethinking the field\'s historically somewhat negative views of intense peer connections, peer influences, and adolescent risk-taking behavior. It is argued that intense peer connections are critical to development, and that peer influence and risk taking have important, often overlooked, adaptive components. The shift in observed manifestations of adolescent psychopathology over this period can be viewed at least partly in terms of a shift away from strong peer connections and toward greater risk aversion. Implications for research and intervention based on a focus on the adaptive aspects of peer influences and risk taking are discussed.

BACKGROUND: Peer influence, the development of attitudes, and behavioral changes are some of the phenomenal changes that happen in adolescence.
METHODS: A descriptive cross-sectional study was undertaken to find out the association between peer influence and behavior among 355 adolescents within the age group of 16 to 18 years, randomly chosen from Pre-university schools of Udupi district, Karnataka using the Peer Influence Scale (PIS) and Strengths and Difficulties Questionnaire (SDQ).
RESULTS: The results indicate that their peers highly influenced 43.9% of the participants. Meanwhile, 23.1% and 7.9% of adolescents who participated in the survey showed borderline and abnormal behavior, respectively. The association between peer influence and behaviour was assessed using the Chi-square test; the results (χ2=14.545, P = 0.001) revealed that peers highly influence adolescent behavior and change adolescent conduct significantly.
CONCLUSIONS: Adolescents should be aware of the accepted and non-accepted behaviors in society and be wise in choosing the right peers who later influence their behavior. Parents need to check the conduct of their children and guide them in developing their identity.