School-based Friendship Networks Research Articles

Gender segregation in the friendship networks of Muslim youth in Germany: the role of chastity norms

ABSTRACT Western Muslim youth engage less in romantic relationships than their non-Muslim peers, an observation usually attributed to chastity norms that oppose Muslim youths’ premarital sexual activity. In this study, I ask whether chastity norms also shape cross-gender interaction beyond romantic relationships and lead to fewer cross-gender friendships among Muslim than non-Muslim youth. To isolate the consequences of chastity norms from institutionalized practices of gender segregation in Muslim religious communities, I study friendship-making in German coeducational schools, which provide ample opportunities for cross-gender friendships. I apply multilevel exponential random graph models to large-scale data on adolescents’ school-based friendship networks, finding cross-gender friendships to be generally infrequent but notably rarer among Muslim than non-Muslim youth. However, this lack of cross-gender friendships is limited to Muslim youth who hold strong chastity norms, while more liberal Muslim youth have as many cross-gender friends as non-Muslims. Among non-Muslims, chastity norms are unrelated to cross-gender friendships.

Associations within school-based same-sex friendship networks of children\u2019s physical activity and sedentary behaviours: a cross-sectional social network analysis

BackgroundPhysical activity in children is associated with better physical and mental health but many children do not meet physical activity guidelines. Friendship groups are potentially an important influence on children’s physical activity and sedentary time. This paper examines the association between children of physical activity and sedentary time in school-based same-sex friendship networks, for both moderate-to-vigorous intensity physical activity (MVPA) and sedentary time. Moreover, considering the methodological challenges of conducting and interpreting these analyses, we provide examples of how to analyse these data and interpret results to encourage further work in the area.MethodsAccelerometer data for 1223 children, aged 8-9 years, were collected in 2015-2016 and analysed in 2017. Mean accelerometer minutes of MVPA and sedentary time were calculated. Children named up to four school friends and same-sex school-based friendship networks were constructed. Network models, which include correlation between friends, were fitted by sex.ResultsBoth MVPA and sedentary time were found to be associated via the friendship networks, for both boys and girls. The network autocorrelation was 0.21 (95% CI: 0.15 to 0.26) for boys’ MVPA, and 0.14 (95% CI: 0.07 to 0.21) for sedentary time. Network autocorrelation between girls was weaker, with 0.13 (95% CI: 0.06 to 0.19) for MVPA and 0.11 (95% CI: 0.05 to 0.17) for sedentary time.ConclusionsPhysical activity and sedentary time of boys and girls are associated with the physical activity and sedentary time respectively of others within same-sex friendship networks, and these associations are comparable to other known factors. In this study, the correlation between friends was stronger for boys than girls, and stronger for MVPA than for sedentary time. These findings suggest that friendship networks play a part in understanding children’s physical activity and sedentary time and could play a valuable role in developing effective interventions.

Ethnic segregation of friendship networks in school: Testing a rational-choice argument of differences in ethnic homophily between classroom- and grade-level networks

Adolescents’ school-based friendship networks tend to be segregated along ethnic lines. But few studies have examined whether variation in network boundaries affects the degree of ethnic friendship segregation. We use rational-choice theory to argue that ethnic homophily is more pronounced for friendships between classrooms than for those within classrooms. We empirically test this hypothesis using two-wave German panel data (N=1258) and stochastic actor-oriented models (RSiena). In line with our theoretical argument, we find that the tendency to form same-ethnic friendships is indeed stronger at the grade level, which translates into stronger ethnic segregation in friendship networks at the grade level than at the classroom level. Implications for research on ethnic segregation in school-based friendship networks are discussed.

The Native American Adolescent: Social Network Structure and Perceptions of Alcohol Induced Social Problems

Race/ethnicity and the structure of an adolescent's social network are both important factors in the etiology of delinquent behavior. Yet, much of the minority-group delinquency literature overlooks the Native American youth population that traditionally exhibits high rates of alcohol use and abuse. Utilizing data from the National Longitudinal Study of Adolescent Health, we compare the structural characteristics of school-based friendship networks of American Indian youth and other racial/ethnic groups. Our core sample for the descriptive analysis consists of 70,841 youth (Caucasian = 42,096; Black = 13,554; Asian = 4,758; Hispanic = 4,464; American Indian = 3,426; Other = 2,543; Female = 50%). We find that Native American youth generally occupy similar social positions within school hierarchies compared to other minority groups. However, American Indian youth have fewer ties at the school level than Caucasian youth, including reports of fewer reciprocated friendships, a smaller number of in-school friends, and membership in less cohesive personal networks. We also focus on the detrimental social and physical consequences of alcohol use during adolescence and offer an extended consequences model (n = 5,841) that includes the interactive effects of race/ethnicity, age, and drinking influences on relationships with friends (Caucasian = 59%; Black = 19%; Asian = 7%; Hispanic = 7%; American Indian = 5%; Other = 3%; Female = 54%). American Indian youth are no more likely than other youth to report personal drinking as being detrimental to social relationships with parents, peers, and romantic partners. We address ties between our findings and criminal justice policies and practices, as well as the implications for similar network analyses involving other racial/ethnic groups.

DANGEROUS LIAISONS? DATING AND DRINKING DIFFUSION IN ADOLESCENT PEER NETWORKS.

The onset and escalation of alcohol consumption and romantic relationships are hallmarks of adolescence, yet only recently have these domains jointly been the focus of sociological inquiry. We extend this literature by connecting alcohol use, dating and peers to understand the diffusion of drinking behavior in school-based friendship networks. Drawing on Granovetter's classic concept of weak ties, we argue that adolescent romantic partners are likely to be network bridges, or liaisons, connecting daters to new peer contexts which, in turn, promote changes in individual drinking behaviors and allow these behaviors to spread across peer networks. Using longitudinal data of 459 couples from the National Longitudinal Study of Adolescent Health, we estimate Actor-Partner Interdependence Models and identify the unique contributions of partners' drinking, friends' drinking, and friends-of-partners' drinking to daters' own future binge drinking and drinking frequency. Findings support the liaison hypothesis and suggest that friends-of-partners' drinking have net associations with adolescent drinking patterns. Moreover, the coefficient for friends-of-partners drinking is larger than the coefficient for one's own peers and generally immune to prior selection. Our findings suggest that romantic relationships are important mechanisms for understanding the diffusion of emergent problem behaviors in adolescent peer networks.

How physical activity shapes, and is shaped by, adolescent friendships

The current study explored the role of school-based friendship networks in adolescents’ engagement in physical activity (PA). It was hypothesized that similar participation in PA would be a basis for friendship formation, and that friends would also influence behavior. Whether these processes were mediated through cognitive mechanisms was also explored. Self-reported participation in PA, cognitions about PA, and friendship ties to grade-mates were measured in two cohorts of Australian grade eight students ( N = 378; M age = 13.7) three times over the 2008 school year. Interdependence between the friendship networks and PA was tested using stochastic actor-based models for social networks and behavior. The results showed that participants tended to befriend peers who did similar amounts of PA, and subsequently emulated their friends’ behaviors. Friends’ influence on PA was not found to be mediated through adolescents’ cognitions about PA. These findings show that there is a mutually dependent relationship between adolescent friendship networks and PA; they highlight how novel network-based strategies may be effective in supporting young people to be physically active.

School-based friendship networks and children’s physical activity: A spatial analytical approach

Despite the known health benefits, the majority of children do not meet physical activity guidelines, with past interventions to increase physical activity yielding little success. Social and friendship networks have been shown to influence obesity, smoking and academic achievement, and peer-led interventions have successfully reduced the uptake of adolescent smoking. However, the role of social networks on physical activity is not clear. This paper investigates the extent to which friendship networks influence children’s physical activity, and attempts to quantify the association using spatial analytical techniques to account for the social influence.Physical activity data were collected for 986 children, aged 10–11 years old, from 40 schools in Bristol, UK. Data from 559 children were used for analysis. Mean accelerometer counts per minute (CPM) and mean minutes of moderate to vigorous physical activity per day (MVPA) were calculated as objective measures of physical activity. Children nominated up to 4 school-friends, and school-based friendship networks were constructed from these nominations.Networks were tested to assess whether physical activity showed spatial dependence (in terms of social proximity in social space) using Moran’s I statistic. Spatial autoregressive modelling was then used to assess the extent of spatial dependence, whilst controlling for other known predictors of physical activity. This model was compared with linear regression models for improvement in goodness-of-fit.Results indicated spatial autocorrelation of both mean MVPA (I = .346) and mean CPM (I = .284) in the data, indicating that children clustered in friendship groups with similar activity levels. Spatial autoregressive modelling of mean MVPA concurred that spatial dependence was present (ρ = .26, p < .001), and improved model fit by 31% on the linear regression model. These results demonstrate an association between physical activity levels of children and their school-friends, and indicate that spatial modelling is an informative method for incorporating the influence of school social structure into physical activity analysis.

Obesity-related behaviors in adolescent friendship networks

This study examines obesity-related behaviors within adolescent friendship networks, because adolescent peers have been identified as being important determinants of many health behaviors. We applied ERGM selection models for single network observations to determine if close adolescent friends engage in similar behaviors and to explore associations between behavior and popularity. Same-sex friends were found to be similar on measures of organized physical activity in two out of three school-based friendship networks. Female friends were found to engage in similar screen-based behaviors, and male friends tended to be similar in their consumption of high-calorie foods. Popularity (receiving ties) was also associated with some behaviors, although these effects were gender specific and differed across networks.

The Company You Keep: Adolescent Mobility and Peer Behavior*

Residential mobility has been linked to a variety of problematic behaviors during adolescence, but the reasons for this association are not well understood. This analysis examines the relationship between adolescent residential mobility and the academic and deviant behaviors of members of adolescents’ friendship networks. Using data from approximately 12,000 respondents in the National Longitudinal Study of Adolescent Health (Add Health), we find that residentially mobile adolescents belong to school-based friendship networks whose members exhibit weaker academic performance and expectations, less school engagement, and higher rates of deviance than do members of the friendship networks of nonmobile adolescents, even after controlling for adolescents’ own academic and deviant behaviors. These differences in the behavioral composition of adolescent friendship networks are not ephemeral, but appear to persist for several years. Moreover, these differences are equally pronounced among older and younger adolescents and among girls and boys. We also find that parental socioeconomic status is positively associated with adolescents’ involvement in high-achieving and prosocial friendship networks. Directions for future research exploring the impact of residential and school mobility on adolescent development and functioning are discussed.

Friends in the ‘hood: Should peer-based health promotion programs target nonschool friendship networks?

Purpose To examine the characteristics of inner city African-American adolescents nonschool-based and school-based friendship networks and to explore the influence of these networks on health risk behavior. Methods We assessed close friendships networks in a probability sample of inner city African-American youth living in a single neighborhood and describe the networks and health risk behavior of network members. The initial probability sample was obtained via telephone (Random Digit Dialing [RDD] sampling) and followed up with in-person interviews with telephone respondents (seeds). Subsequently, seeds’ friends were recruited and completed an in-person interview. Results A majority of friendship networks included some nonschool friends (57%) and 24% of networks were composed exclusively of nonschool friends. As expected, youth were more likely to spend time with school-based friends on weekdays. On weekends, youth were equally likely to spend time with both school and nonschool networks. Youth in the same friendship group tended to engage in similar behaviors. Health risk behaviors were high regardless of whether networks were nonschool based, mixed, or school based. Conclusions The high proportion of nonschool friendships suggests that out-of-school networks may be an important influence in this population. Youth spend time with their friends, regardless of network type, on weekends, and weekends are a high-risk period for health-damaging behaviors. Levels of experience with health risk behaviors suggest that both school and nonschool environments require intervention. Future social influence prevention efforts that are broad-based are likely to have maximal impact.