Social media engagement has become a critical part of adolescent social interactions, making it important to examine individual differences in motivations for social media engagement as well as associated adjustment outcomes. Additionally, much of the extant research focuses on how much time adolescents spend on social media; researchers have only recently begun to differentiate specific social media behaviors and their varied role in adolescent development (e.g., Valkenberg & Peter, 2011). Based on recent research, I investigated four social media behaviors: self-disclosure, self-presentation, lurking, and social monitoring, along with social media engagement in terms of time and frequency. Based on hormonal activation theory (Forbes & Dahl, 2010), I focused on pubertal and social goal correlates of individual differences in social media engagement among adolescents. I also examined positive (prosocial support) and negative (peer victimization, internalizing problems) adjustment associated with social media engagement. Participants were 426 public school students (54.2% female, 73.6% Caucasian, mean age = 12.91, SD = .92) from sixth (N = 152), seventh (N = 142), and eighth (N = 132) grades who completed self-reported survey measures during their Health classes. Adolescents used more passive (lurking, social monitoring) than active social media (self-disclosure, self-presentation) behaviors. Girls reported more social media engagement than boys, and older adolescents reported more social media engagement than younger adolescents. Pubertal timing was not associated with social media engagement; instead, social goals (i.e., popularity goals and preference goals) were strongly associated with adolescents’ social media use. Social media engagement was reliably associated with adolescent adjustment. Self-presentation may function as a double-edged sword, promoting peer prosocial support but also increasing the risk for peer victimization and internalizing problems. Self-disclosure was uniquely associated with an increased risk of peer victimization, and lurking was uniquely associated with internalizing problems. Social monitoring was not uniquely associated with any of the adjustment outcomes. Contrary to previous literature (e.g., Kross et al., 2013), the amount of time spent on social media was not uniquely associated with any adjustment outcomes after social media behaviors were controlled, suggesting the importance of examining what adolescents are doing with that time. Unexpectedly, the frequency of social media use (a measure less often considered in the literature) appeared to be uniquely associated with more adaptive adjustment. The association between social media engagement and adjustment was stronger for girls than for boys (particularly for peer victimization). Findings extend previous research demonstrating the importance of considering specific social media behaviors in adolescent development. Future research should longitudinally examine the role of social media engagement on adolescent adjustment. Additionally, multi-method approaches (e.g., observational data collection, peer nominations) should be utilized to better understand the role of social media engagement on adolescent development. Finally, future research should examine different social media platforms (e.g., Twitter, Fortnite, Snapchat) and adolescent adjustment. / Psychology

Relational aggression is an indirect type of aggression used to damage relationships with others. Adolescent girls frequently encounter this issue, and the ubiquity of technology has expanded the ways in which girls can attack one another, i.e. cyber-bullying. The causes of relational aggression are unknown and could involve a combination of factors, including victim and/or bully psycho-social adjustment, social expectations, or the implicit structure of female friendships in adolescence. The effects range from social anxiety to impacted school performance to depression and suicidality. Groups of friends act much like a family for adolescents in terms of support and intimacy. Using Murray Bowen’s family systems theory as a template, an intervention is proposed where girls are taught techniques that will strengthen relationships with others and themselves. / text

L’étude du harcèlement systématique entre pairs à l’école (school bullying) est-il éclairé par l’approfondissement de la relation aux normes qu’entretiennent les jeunes acteurs ? Quels sont les éléments clé aidant l’identification et la compréhension du phénomène ?A partir d’une redéfinition du bullying insistant sur les apports croisés de chaque protagoniste sur la scène des dynamiques indésirables, le travail propose une étude située du problème. Chaque acte et chaque initiative de type bullying sont ainsi analysés dans le cadre de la situation spécifique qu’ils dessinent et dont ils relèvent à la fois. Pour cela, l’attention est portée sur les attributions de sens et sur la perception réciproque d’adhésions normatives mises en avant par les élèves concernés. Quatre classes scolaires italiennes sont analysées dans leurs dynamiques relationnelles et conflictuelles ; du point de vue de leur organisation, de l’ordre et de la discipline ; en termes d’investissements axiologiques opérés par les jeunes et leur entourage et encouragés par les enseignants. / School bullying: does the study of peer harassment in schools delve deeper into the relationships of young people with rules and values? What are the key factors that can help to better identify and understand the phenomenon ? The work starts from a re-definition of school bullying based on the cross contribution of each character acting in the educational scene where the undesirable dynamics take place to propose a local analysis of the problem. Each school bullying initiative is analysed in the context of the specific situation that it create and from which it raises. Attention is also brought to the attribution of meanings as well as to the reciprocal perception of the compliance with the rules by students. Four Italian classrooms are examined taking into account the dynamics of their relationships and conflicts; their organization, rules and discipline; the axiological investments made by young people and promoted by their teachers.

eer victimization is a common experience that is associated with later psychopathology. However, there is inconsistency in the strength and statistical significance of this effect. The current study used two methods to try to understand this inconsistency. First, co-occurring internalizing and externalizing symptoms were considered dimensionally. Second, the present study considered temperament as a potential moderator to explain the multifinality of outcomes that occur following peer victimization. A community sample (N = 387; 52% female) of early adolescents (11-15) from a longitudinal study of risk and resilience factors for psychopathology was utilized to test hypotheses. Cross-lagged examinations between victimization and psychopathology were examined, including the moderating effect of temperament. No longitudinal relationship between victimization and psychopathology was found. A significant interaction between victimization and effortful control predicted externalizing and co-occurring symptoms. Future researchers should consider improving the measurement of victimization and temperament to get a better understanding of the effect.

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The goal of this study was to examine the contributing factors to depression in young adult males with high-functioning autism spectrum disorders (HFASD) and controls. Specifically, this study examined the relationship between recalled relational peer victimization, self-perceived social competence, global self-worth, and symptoms of depression in individuals with HFASD compared to normal controls. Depression is one of the most prevalent comorbid conditions in the HFASD population. Individuals with autism are also subjected to high rates of peer victimization. Given that social abilities are impaired in individuals with autism, it was hypothesized that their experiences with victimization by peers, along with their self-perceived social competence and global self-worth, would help explain levels of depression. It was expected that higher levels of peer victimization, lower levels of self-perceived social competence, and lower levels of global self-worth would explain higher levels of depression. Additionally, it was expected that self-perceived social competence would mediate the effect of peer victimization on depression, global self-worth would mediate the effect of peer victimization on depression, and global self-worth would mediate the effect of self-perceived social competence on depression. Variables were measured with self-report questionnaires. Multiple regression and bootstrapping measures of indirect effects were used to examine the presumed effects. Participants included 40 males, ages 18-26; there were 21 control participants and 19 individuals with HFASDs. Individuals with HFASD had significantly higher levels of depressive symptoms, lower levels of self-perceived social competence, lower levels of global self-worth, and a trend towards higher reports of peer victimization. Multiple regression analyses determined that peer victimization, global self-worth, and self-perceived social competence significantly predicted depressive symptoms in the total sample. Also, peer victimization significantly predicted self-perceived social competence and global self-worth. Additionally, self-perceived social competence significantly predicted global self-worth. Tests of indirect effects indicated that global self-worth mediated the effect of peer victimization on depression, self-perceived competence mediated the effect of peer victimization on depression, and global self-worth mediated the effect of self-perceived competence on depression. As a follow-up, this study also examined select HFASD participants' responses about how they defined bullying, as well as their perceived experiences with victimization. / text

Bullying is a serious problem on its own but emerging research suggests that bullying may present differently in students with disabilities and affect them more severely than previously thought. The purpose of this study was to explore the multi-layered issue of bullying involving students with disabilities, examine the programs and legislation developed around this issue, and determine the training and knowledge teachers and teacher candidates have regarding the problem. An exploratory survey was completed by 105 teachers and teacher candidates in northeast Tennessee. Descriptive statistics and T-tests revealed that in-service teachers were more knowledgeable in identification of bullying and the components of Tennessee’s anti-bullying law than pre-service teachers. Additionally, this study found that elementary teachers answered more general bullying knowledge questions correctly than upper grade teachers. The limited utilization of evidence-based bullying prevention and intervention programs and strategies was also noted. Implications for teacher training programs will be discussed.

The ADHD symptoms of hyperactivity and impulsivity have detrimental effects on children's social functioning and increase their risk of being victimized by peers and engaging in bullying behaviors (Unnever & Cornell, 2003;Wiener & Mak, 2009). In particular, the specific social skills of peer competence and self-control were examined to determine if there was a mediating or indirect effect on peer victimization or engagement in bullying behaviors. Participants in this study included 707 children from the NICHD Study of Early Child Care and variables were measured in the 3 rd , 5 th , and 6 th grades. Results indicated no direct effects between hyperactive/impulsive symptoms and peer victimization or engagement in bullying. However, a significant indirect effect between hyperactive/impulsive symptoms in the 3 rd grade and peer victimization in the 6 th grade via peer competence in the 5 th grade was found. Evidence of an indirect effect between hyperactive/impulsive symptoms and peer victimization via self-control skills was also found. A significant relationship between hyperactive/impulsive symptoms and engagement in bullying through peer competence was not found. Finally, results suggested a significant indirect effect between hyperactive/impulsive symptoms and engagement in bullying behavior through self-control skills.

Cette étude s’intéresse aux relations d’amitié et aux caractéristiques des amis comme facteurs de risque interpersonnels susceptibles de prédire les changements à travers le temps, de la victimisation par les pairs au début du secondaire. L’échantillon est composé de 524 élèves de secondaire I et II pour lesquels le niveau de victimisation a été mesuré par les pairs lors de deux années consécutives. Les facteurs de risque individuel associés à la victimisation par les pairs (i.e. les comportements agressifs, les comportements de retrait social et le rejet par les pairs) ainsi que les caractéristiques des amis (i.e. agressivité, retrait social et victimisation des amis) ont également été évalués par les pairs lors du premier temps de mesure. Les résultats démontrent qu’au-delà des facteurs de risque individuels, un plus grand nombre d’amis prédit une diminution de la victimisation par les pairs sur une période d’un an. De plus, pour les élèves rejetés socialement, la victimisation des amis permet de rendre compte d’une augmentation de la victimisation dans le temps. Contrairement aux résultats obtenus par d’autres études, l’agressivité des amis permet de prédire une diminution de la victimisation seulement pour les élèves bien acceptés socialement. Pour les jeunes qui sont rejetés socialement, l’agressivité des amis permet de prédire une augmentation de la victimisation par les pairs. Ces résultats apportent un regard nouveau sur l’inter influence entre l’identité des amis et le contexte social dans lequel les adolescents évoluent. / This study examined the association between friend’s characteristics and the pattern of changes in peer victimization in the first years of middle school. The sample was composed of 524 grade 7 and 8 French-Canadian students from two middle schools. Student’s level of victimization as perceived by their peers was evaluated during two consecutive school years. Individual risk factors (i.e. aggressive behaviors, social withdrawal and peer rejection) and friend’s characteristics (i.e. friend’s aggression, social withdrawal and victimization) were also measured with peer nominations during the first year of the study. Results show that beyond individual risk factors, the number of friends was associated with a decrease over time in peer victimization. Moreover, for socially rejected students, having friends who are victimized within the peer group was associated with an increase in peer victimization. Results also show that having aggressive friends lead to a decrease in peer victimization, but only for popular students. However, for socially-rejected students, having aggressive friends was associated with an increase over time in peer victimization. This study brings a new light on the dynamic influences between friends’ identity and the social context in which adolescents evolve.

La victimisation au sein du groupe de pairs est un facteur de risque associé à l’augmentation des symptômes dépressifs au début de l’adolescence. En contrepartie, le fait d’entretenir des relations d’amitié constitue un facteur protecteur important susceptible de modérer les conséquences négatives associées à la victimisation par les pairs. Toutefois, les bénéfices associés aux relations d’amitié peuvent varier en fonction de certaines caractéristiques de celles-ci. Cette étude a pour but d’évaluer dans quelle mesure les caractéristiques des relations d’amitié (c.-à-d., le caractère intime et soutenant de la relation et la propension des amis à co-ruminer) modèrent l’association entre la victimisation par les pairs et l’augmentation des symptômes dépressifs sur une période d’un an. L'échantillon est composé de 536 élèves du secondaire auprès de qui la victimisation et les caractéristiques des relations d’amitié ont été évaluées au premier temps de mesure de façon auto-rapportée. Les symptômes dépressifs des élèves ont également été mesurés lors de deux années consécutives. Les résultats démontrent que le niveau de victimisation des élèves, la qualité des relations d’amitié et la tendance des amis à co-ruminer sont respectivement associés de façon concomitante à l’expression des symptômes dépressifs. En contrepartie, seule la co-rumination entre amis permet de rendre compte de l’augmentation des symptômes dépressifs sur une période d’un an. L’association entre la victimisation par les pairs et le développement des symptômes dépressifs n’est toutefois pas modérée par les caractéristiques des relations d’amitié. / Victimization is an important risk factor for depression in early adolescence. On the other hand, having friends is an important protective factor susceptible of moderating the negative effects associated with victimization. However, the benefits associated with friendships may vary according to some of their characteristics. The goal of this study was to evaluate whether friendship characteristics (i.e. intimacy and support as well as co-rumination) moderate the association between victimization experiences and depressed feelings a year later. The sample is composed of 536 high school students whose victimization level, friendship quality and tendency to co-ruminate were self-reported at the first time point. Depressive mood were self-reported at the end of two consecutive years. Results show that victimization, friendship quality and co-rumination are respectively associated with concurrent depressive mood. However, only co-rumination predicted depressive mood a year later after controlling for initial adjustment. The link between peer victimization and depressive mood was not moderated by friendship characteristics.