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AbstractThe present study investigated regulatory self‐efficacy (RSE) as a predictor of friendship and adolescent alcohol intoxication and as a moderator of peer socialization processes related to alcohol intoxication. The longitudinal sample included 457 Italian adolescents (262 females and 195 males) ranging in age of 14 to 20 years (M = 16.1 years of age). Sociometric and behavioral data were collected at the beginning and end of the academic school year. Actor‐based models were applied to simultaneously estimate selection and socialization processes accounting for interdependencies among friends' drinking behaviors. The results indicated that adolescents did not select friends with similar levels of alcohol intoxication or RSE, but adolescents did adopt their friends' drinking behaviors. RSE was negatively associated with adolescent drinking behaviors and moderated socialization processes related to alcohol use, with adolescents reporting higher levels of RSE being less likely to adopt their friends' drinking behaviors than adolescents with lower levels of RSE.

Cette étude examine les processus de sélection et d'influence liés à l'engagement scolaire et au comportement délinquant dans les relations d'amitié chez les adolescents. Nous appliquons des modèles d'analyse de réseaux dynamiques (Snijders, Steglich et Schweinberger, 2007) examinant la coévolution des comportements et des réseaux à un échantillon longitudinal de jeunes suédois (n = 445) observé pendant cinq ans. Les résultats indiquent que les choix des jeunes sont caractérisés par un fort niveau de réciprocité, de transitivité, d'homophilie de genre et d'homophilie fondée sur des niveaux semblables d'engagement scolaire et de comportement déviant. Des effets d'influence indiquent que les jeunes adoptent les comportements déviants de leurs amis. Le niveau d'engagement scolaire permet de prédire des changements dans le comportement déviant et ce dernier permet en retour de prédire une évolution dans l'engagement scolaire.

This study examined prospective associations between late adolescents' friendships and substance use (alcohol, marijuana, tobacco) using a stochastic actor‐based modeling approach and the moderating role of popularity. Participants were 450 adolescents (53% female, M age = 15.5 years) who completed surveys in grades 10 and 11. Results of a single multivariate model indicated that peer selection based on similar tobacco use was a more robust predictor of changes in friendship than selection based on similar alcohol and marijuana use; and peer socialization of alcohol use predicted more changes in adolescent‐drinking behaviors. Popularity moderated selection based on alcohol use; popular adolescents were more likely to select friends with high levels of drinking behaviors. Popularity did not moderate peer socialization.

Democratic family functioning has traditionally been interpreted as effects of parenting, leaving little room for the adolescent in shaping the democratic climate. Here we argued that an understanding of the democratic family functioning has to involve both adolescent and parental behaviors. We hypothesized that parental openness and fair treatment, and adolescent openness, each uniquely predict changes in democratic family functioning. Also, we argued that family functioning constellations characterized by parental openness and fair treatment, and adolescent openness, should be the constellations adolescents experience as democratic, and where parents know much about their adolescents' whereabouts outside home. We used a longitudinal study following a group of 13–15-year-old adolescents (N = 527) over 2 years. Results using variable-oriented methods confirmed that both adolescent and parental behaviors were prospectively linked to adolescents' perceptions of the democratic family climate. Person-oriented methods showed that adolescents perceived a highly democratic family climate, and that parents' knowledge was highest, in families characterized by both parental and adolescent openness and parental fair treatment. Over-time changes in family functioning corresponded to changes in parental knowledge and adolescents' perceptions of democratic family functioning. We conclude that conceptions of the democratic functioning of the family have to include the behaviors of both parents and adolescents, and that mutual responsivity is a marker of the democratic family functioning.

This article introduces and conceptually underpins an instrument to measure group functioning in child care groups, the Group Functioning Instrument for Child Care (GFI-CC). This instrument was applied in 44 Dutch child care groups (0- to 4-year-olds). The results of this first explorative investigation with the GFI-CC provided initial support for an underlying conceptual model of group functioning in child care centers based on cohesion (network structure, action coordination, and involvement) and emotional climate. The relation between group functioning and structural group characteristics was also examined. Mean age and group continuity (i.e., how long the children have already been attending the group) predicted group functioning, with higher group functioning in groups with older children and in groups with greater continuity. Group size and group constancy (i.e., how many days a week children attend the child care group together) did not independently contribute to the prediction of the group functioning variables.

AbstractIn adolescent best friendship dyads, we examined: (a) similarity in substance use and decision‐making; (b) associations between participants' decision‐making and their own and best friend's substance use, (c) the influence of relative popularity within the dyad on these associations. Participants (n = 172; 12–18 years) named their best friend, completed popularity ratings, and a substance use questionnaire. Computer tasks were administered to assess risk‐taking and immediate reward preferences. Reciprocated same‐sex best friendship dyads (n = 49) were distinguished on their popularity, and we controlled for age differences between dyads in the analyses. Best friends were similar in substance use and risk‐taking preferences. More popular friends' risk‐taking preferences were positively associated with alcohol use of less popular friends. These findings underscore best friendship similarity in risky behaviors, and the influence of popular friends.

Emerging adults were among those especially affected by the distancing measures and instability brought on by the COVID-19 pandemic. However, not all emerging adults were affected equally. Thus, the purpose of this paper was to determine if different types of socially withdrawn emerging adults (shy, unsocial, avoidant, mixed-withdrawn) were affected differently from one another and from non-withdrawn emerging adults. Pandemic impact was measured in terms of changes in mental distress, life satisfaction, and identity development from before the pandemic to during the pandemic. Participants were 1249 emerging adults from project READY, a nationally representative, longitudinal study of young adults in the United States. Results showed that mixed-withdrawn emerging adults decreased in mental distress from before the pandemic to during the pandemic while non-withdrawn emerging adults increased in mental distress. Additionally, there was a decrease in life satisfaction across groups, and no significant change in identity development across time.

The aim of this longitudinal study was to investigate emerging adults' mental health before and during the COVID-19 pandemic, and whether social support from mothers, fathers, and best friends moderated the change in mental health. Participants were 98 emerging adults (46% men) who were assessed prior to COVID-19 ( Mage = 20.60 years) and during the first lockdown ( Mage = 22.67 years). Results indicated that the pandemic did not uniformly lead to elevated levels of mental health problems, but instead depended on level of mental health problems prior to COVID-19 and the source of support. For emerging adults who already experienced more problems prior to COVID-19, more maternal support was related to decreases in general psychological distress and depressive symptoms, whereas more paternal support was related to increases in general psychological distress and depressive symptoms. Support from best friends were not associated with (changes in) mental health.

This report examined the stability and reliability of self-reported conflict frequency in relationships with mothers, fathers, and best friends. Participants were drawn from three independent samples in the Netherlands (n = 72, M = 15.6 years), Germany (n = 242, M = 19.7 years), and the United States (n = 250, M = 19.8 years). Participants completed both topic-based surveys and interaction-based diary assessments of conflict frequency. Within samples, comparable levels of internal consistency and temporal stability emerged in each relationship for both assessment techniques. Topic-based and interaction-based assessments of conflict frequency were moderately correlated in each relationship within samples. Daily topic-based assessments with short intervals between time points may provide the most advantageous assessment strategy for obtaining reliable measures of conflict frequency in adolescents' close relationships.

This study examined direct and indirect forms of peer socialization of nonsuicidal self‐injury (NSSI) in adolescent friendship networks. Data were collected among 348 adolescents (55% females; Mage = 15.02 years; SD = 0.53) at four assessment waves. Stochastic actor‐based models revealed no evidence for direct socialization of NSSI: adolescents whose friends reported higher NSSI did not increase their NSSI over time. However, indirect forms of socialization were found. After controlling for direct socialization and selection effects, friends' depressive symptoms predicted changes in male and female adolescents' NSSI, and friends' impulsivity predicted changes in male adolescents' NSSI. Findings highlight the importance of extending peer influence research beyond the classical "modeling" paradigm by providing evidence that peers may indirectly socialize adolescents' NSSI.