PEER SIMILARITY IN DELINQUENCY FOR DIFFERENT TYPES OF FRIENDS: A COMPARISON USING TWO MEASUREMENT METHODS*

Peer similarity in delinquency has been studied extensively. But basic questions remain about measuring peer delinquency and how important the nature of relationships with delinquent peers is. This article uses data from the NSCR School Project, which has collected unusually detailed information about delinquent peers and the social networks of adolescents. We examine differences in the roles of regular friends and best friends with regard to peer similarity in delinquent behavior. We also contrast two methods of measuring peer delinquency: the conventional one of asking respondents about their peers, and the social network method, by which peers report about themselves. The results show that respondents can have best and regular friends who differ in their degree of delinquency, and that the association between respondent and peer delinquency does not differ much between friends and best friends. At the same time, our results suggest that both types of peers influence the level of respondent delinquency. Measures based on the direct network method resulted in higher estimates of peer delinquency, but in lower estimates of the association between respondent and peer delinquency.     

THE DYNAMICS OF DELINQUENT PEERS AND DELINQUENT BEHAVIOR*

This analysis examines the dynamic reciprocal relationship between delinquent peer associations and delinquent behavior. It tests the hypothesis, derived from learning and interactional theories, that delinquent peers and delinquent behavior are reciprocally related—delinquent peer associations foster future delinquency, and delinquency increases the likelihood of associating with delinquent peers. It also tests the competing hypothesis, derived from control theories, that delinquent peers do not cause delinquency, but instead, the relationship is (1) spurious due to individual criminal propensity, (2) a result of the effects of delinquent behavior on future associations with delinquent peers, or (3) an artifact of problems of measuring delinquent peers. To test these propositions, we use data from the National Youth Survey and estimate a cross-lagged panel model that corrects for measurement error in indicators of delinquent peers and delinquent behavior. The model species a covariance structure model for ordinal measures. Parameters are estimated by (1) estimating a threshold model relating ordinal measures to continuous latent variables; (2) estimating a matrix of polychoric correlations relating observed variables, and (3) using an asymptotic distribution-free estimator to estimate structural parameters. The results suggest that delinquent peer associations and delinquent behavior are reciprocally related, but the effect of delinquency on peer associations is larger than that of peer associations on delinquency.     

DELINQUENCY BALANCE: REVISITING PEER INFLUENCE*

An impressive number of inquiries across an array of methodological specifications has demonstrated that deviant peers are an important correlate of various criminological outcomes, which include within‐ individual change and stability in offending behavior. Still, the causal mechanisms of peer influence arguably remain underdeveloped (Giordano, 2003; Warr, 2002). In an attempt to expand the dialogue on the nature of peer influence, this inquiry proposes that scholars would benefit from considering relative peer deviance in addition to exposure to deviant peers. Specifically, it argues that an imbalance in delinquency between friends helps to explain delinquency change/stability; therefore, exposure to deviant peers is not always risky and exposure to less deviant peers is not always protective. The analysis uses the Add Health data to construct within‐individual and across‐individual (delinquency) difference scores and relies on self‐reports rather than on perceptions for the best friends' delinquency. The results provide support for the premise that adolescents attempt to achieve delinquency “balance” with their best friend by changing behavior, net of raw peer deviance levels (i.e., objective exposure). The findings also suggest that balance is not achieved through selection, given that the deviance gap between the respondent and his or her best friend does not predict friendship stability. The discussion considers these results from a theoretical and empirical perspective and offers several avenues for future research.     

DELINQUENT PEERS IN CONTEXT: A LONGITUDINAL NETWORK ANALYSIS OF SELECTION AND INFLUENCE EFFECTS*

In this article, longitudinal social network data are analyzed to get a better understanding of the interplay between delinquent peers and delinquent behavior. These data contain detailed information about the social networks of secondary school students from the same grade, their delinquent behavior, and many relevant correlates of network formation and delinquency. To distinguish selection and influence processes, a method (Simulation Investigation for Empirical Network Analyses, SIENA) is used in which network formation and changes in delinquency are simulated simultaneously within the context of other network processes and correlates of delinquency. The data and the method used make it possible to investigate an unusually wide array of effects on peer selection and delinquent behavior. The results indicate that similarity in delinquency has no significant effect on the selection of school friends when other network dynamics are taken into account. However, the average delinquency level of someone's friends in the school network does have a significant, although relatively small, effect on delinquent behavior of the respondents, beyond significant effects of changes in the level of self‐control and morality. Another peer‐related change, leaving or joining informal street‐oriented youth groups, also appears to have a substantial effect on changes in delinquency.     

Racial composition,sentencing reforms,and rates of incarceration, 1970–1980

Association with delinquent peer groups is one of the most salient predictors of delinquent behavior. Despite the widespread documentation of these effects, little is known about whether the delinquent peer effect is conditioned by individual‐level characteristics. Using data from a multi‐wave survey of Mexican‐American adolescents, this study explored the interactive effect of susceptibility to peer influence and differential association with delinquent peers on delinquent outcomes. Results suggested that the delinquent peer effect on self‐reported delinquency is amplified when an adolescent is highly susceptible to peer influence. Analyses also indicated that this moderating effect varies according to offense seriousness. Specifically, the conditioning effect is most important when considering acts of serious delinquency.     

DECOMPOSING THE PEER EFFECT ON ADOLESCENT SUBSTANCE USE: MEDIATION,NONLINEARITY, AND DIFFERENTIAL NONLINEARITY*

Although the correlation between peer delinquency and delinquency is one of the most consistently demonstrated findings in delinquency research, researchers have focused primarily on the direct, linear, and additive effects of peers in statistical models, rather than on empirically modeling mediating, nonlinear, and moderating processes that are specified by theory. To address these issues, we measure respondent delinquency and peer delinquency with illegal substance use and then decompose the effect of peer substance use on self‐reported substance use. Logistic hierarchical models on a sample of adolescents from the Project on Human Development in Chicago Neighborhoods (PHDCN) indicate that the effect of peer substance use on self‐reported substance use is partially mediated by perceptions of the health risks of substance use. In addition, the direct statistical effect of peers is nonlinear: On average, the peer effect decreases at higher values of peer substance use, which is consistent with a “saturation” effect. We also find that the functional form of the peer substance use/substance use relationship is dependent on the neighborhood context. In neighborhoods with more opportunities for crime, the peer effect is initially strong but decreases as peer substance use increases, which is consistent with a saturation effect. Conversely, in neighborhoods with fewer opportunities for crime, the effect of peers is initially small, but as delinquent peer associations increase, the peer effect increases multiplicatively.     

The First Delinquent Peers Are the Most Important: Examining Nonlinearity in the Peer Effect

Criminologists have long recognized the importance of peers in the etiology of delinquency. Yet, the bulk of empirical studies on this topic make the implicit assumption that the peer effect to be conditioned is linear. With few notable exceptions, prior criminological research has not thought deeply about possible nonlinearity in the peer effect. To address this issue, the present study examines whether the functional form of the relationship between peer and respondent smoking, getting drunk, and fighting is nonlinear, and whether this nonlinearity is moderated by lagged respondent delinquency. Logistic regression models on adolescents from The National Longitudinal Study of Adolescent Health indicate that the marginal effect of peer delinquency on respondent delinquency decreases as the count of delinquent friends increases, consistent with a satiation effect. Moreover, the models indicate that the nonlinear effect of peer delinquency on respondent delinquency is moderated by prior respondent delinquency.     

The Influence of Dating Relationships on Friendship Networks,Identity Development,and Delinquency

Prior research has documented general associations between dating and delinquency, but little is known about the specific ways in which heterosexual experiences influence levels of delinquency involvement and substance use. In the current study, we hypothesize that an adolescent's level of effort and involvement in heterosexual relationships play a significant role in forming the types of friendship networks and views of self that influence the likelihood of delinquency involvement and substance use. Analyses based on a longitudinal sample of adolescent youth (n = 1,090) show that high levels of dating effort and involvement with multiple partners significantly increases unstructured and delinquent peer contacts, and influences self‐views as troublemaker. These broader peer contexts and related self‐views, in turn, mediate the path between dating relationships, self‐reported delinquency, and substance use. Findings also document moderation effects: among those youths who have developed a troublemaker identity and who associate with delinquent peers, dating heightens the risk for delinquent involvement. In contrast, among those individuals who have largely rejected the troublemaker identity and who do not associate with delinquent friends, dating relationships may confer a neutral or even protective benefit. The analyses further explore the role of gender and the delinquency of the romantic partner.     

AGE,PEERS, AND DELINQUENCY*

Hirschi and Gottfredson (1983; Gottfredson and Hirschi, 1990) have argued that the age distribution of crime cannot be explained by any known variables. and they point specifically to the failure of sociological theories to explain this phenomenon. This paper examines a quintessentially sociological theory of crime—differential association—and evaluates its ability to explain the age distribution of crime. Analysis of data from the National Youth Survey on persons aged 11–21 reveals that peer relations (exposure to delinquent peers, time spent with peers, loyalty to peers) change dramatically over this age span, following much the same pattern as crime itself When measures of peer influence are controlled, the effects of age on self-reported delinquency are largely rendered insignificant. Additional analyses show that delinquent friends tend to be “sticky” friends (once acquired, they are not quickly lost) and that Sutherland's arguments concerning the duration and priority of delinquent associations are only partially correct.     

THE INFLUENCE OF DELINQUENT PEERS: WHAT THEY THINK OR WHAT THEY DO?*

Although the association between delinquent friends and delinquent behavior is well established, the mechanism by which delinquency is socially transmitted remains unclear. Sutherlands theory of differential association holds that delinquency is a consequence of attitudes favorable to the violation of the law, attitudes that are acquired through intimate social interaction with peers. An analysis of data from the National Youth Survey indicates that peer attitudes do affect delinquency. But the effect of peers'attitudes is small in comparison to that of peers behavior, and the effect of peers'behavior remains strong even when peers, attitudes and the adolescent's own attitude are controlled. Moreover, when the behavior and attitudes of peers are inconsistent, the behavior of peers appears to outweigh or override the attitudes of peers. These findings suggest that delinquency is not primarily a consequence of attitudes acquired from peers. Rather, it more likely stems from other social learning mechanisms, such as imitation or vicarious reinforcement, or from group pressures to conform.     

THE INTERACTIVE EFFECTS OF PEER VARIABLES ON DELINQUENCY

Drawing on relevant theory and research, it is argued that the impact of delinquent peers on delinquency is conditioned by (1) attachment to peers, (2) time spent with peers, and (3) the extent to which peers present delinquent patterns (i.e., present definitions favorable to delinquency, model delinquent behavior, and differentially rein force delinquency). Regression analyses with data from the National Youth Survey provide partial support for these arguments. When the above variables are at their mean or lower levels, a measure of association with peers who engage in serious delinquency has no impact or a negative impact on delinquency. When the above variables are at higher levels, delinquent peers (serious) has a strong, positive impact on delinquency. A measure of association with peers who engage in minor delinquency, however, is not conditioned by the above variables.     

DELINQUENT PEERS,BELIEFS, AND DELINQUENT BEHAVIOR: A LONGITUDINAL TEST OF INTERACTIONAL THEORY*

Three theoretical models of the interrelations among associations with delinquent peers, delinquent beliefs, and delinquent behavior are examined. The socialization model views delinquent peers and beliefs as causally prior to delinquent behavior, whereas the selection model hypothesizes that associations with delinquent peers and delinquent beliefs are a result of delinquent behavior. The interactional model combines aspects of both the socialization and the selection models, positing that these variables have bidirectional causal influences on one another over time. Data to test for reciprocal causality are drawn from three waves of the Rochester Youth Development Study. Results suggest that simple unidirectional models are inadequate. Associating with delinquent peers leads to increases in delinquency via the reinforcing environment of the peer network. Engaging in delinquency, in turn, leads to increases in associations with delinquent peers. Finally, delinquent beliefs exert lagged effects on peers and behavior, which tend in turn to “harden” the formation of delinquent beliefs.     

DELINQUENCY AND THE STRUCTURE OF ADOLESCENT PEER GROUPS*

Gangs and group‐level processes were once central phenomena for criminological theory and research. By the mid‐1970s, however, gang research primarily was displaced by studies of individual behavior using randomized self‐report surveys, a shift that also removed groups from the theoretical foreground. In this project, we return to the group level to test competing theoretical claims about delinquent group structure. We use network‐based clustering methods to identify 897 friendship groups in two ninth‐grade cohorts of 27 Pennsylvania and Iowa schools. We then relate group‐level measures of delinquency and drinking to network measures of group size, friendship reciprocity, transitivity, structural cohesion, stability, average popularity, and network centrality. We find significant negative correlations between group delinquency and all of our network measures, suggesting that delinquent groups are less solidary and less central to school networks than nondelinquent groups. Additional analyses, on the one hand, reveal that these correlations are explained primarily by other group characteristics, such as gender composition and socioeconomic status. Drinking behaviors, on the other hand, show net positive associations with most of the network measures, suggesting that drinking groups have a higher status and are more internally cohesive than nondrinking groups. Our findings shed light on a long‐standing criminological debate by suggesting that any structural differences between delinquent and nondelinquent groups are likely attributable to other characteristics coincidental with delinquency. In contrast, drinking groups seem to provide peer contexts of greater social capital and cohesion.     

An investigation into the empirical relationship between time with peers,friendship, and delinquency

Purpose

Much of the research on peer influence has examined the relationship between peer associations and delinquency. Relatively little empirical research has addressed the effects of delinquent behavior on peer intimacy and time spent with peers. Our research attempts to fill these gaps in the literature as we hypothesize that, net of peer delinquency, delinquents spend more time with their peers but are less closely attached to their peers.

Methods

Using data from two waves of the National Youth Survey (NYS), we present two sets of regression models to account for selection bias resulting from whether respondents reported having friends. To assess the stability of our findings, we supplement our presented findings with extensive use of alternate estimation strategies.

Results

Conclusions regarding our hypotheses do not vary by estimation strategy. Delinquents spend more time with their peers, but delinquents and non-delinquents do not report differences in closeness to their peers.

Conclusions

Given our control variables, our finding introduces complexity in the causal priority between time spent with peers and delinquency. Prior delinquency may be a predictor of more time with peers, but partly as an avenue for opportunities for crime, not for the sake of friendship.     

One Bad Apple May Not Spoil the Whole Bunch: Best Friends and Adolescent Delinquency

This study compared the association of adolescent delinquency with that of their best friend and remaining social network. Findings are reported from The National Longitudinal Study of Adolescent Health, a multi-wave nationally representative panel study of adolescents who were in grades 7–12 in 1994. Four delinquent outcomes were examined: Smoking, getting drunk, fighting, and a variety index of general delinquency. All analyses were replicated for three distinct criteria for identifying a “best friend.” We also examined several moderating factors and potential interrelationships between the best friend and remaining friendship group. Relative to the influence of the best friend, the influence of the remaining friendship group increased with group size, and with larger absolute disparities in delinquency levels between best and remaining friends. Our findings extend knowledge on the influence of best friends, and further underscore the importance of whether peer behaviors are measured directly (from the peers themselves) or indirectly (when focal respondents estimate the delinquent behavior of their peers).     

Friendship Networks and Delinquency: The Relative Nature of Peer Delinquency

Although acknowledging the importance of adolescent friendships in the etiology of delinquency, prior studies have yet to provide a detailed examination of the role of actual friendship networks in delinquency. Using data from the National Longitudinal Study of Adolescent Health (1995–1996), this study's incorporation of friendship networks allows for a more rigorous conceptualization and measurement of peer delinquency based on carefully defined networks of adolescent friendships. Findings illustrate that friendship networks are very heterogenous in terms of members' participation in delinquent behavior with the majority of adolescents belonging to networks containing both delinquent and non-delinquent friends. In support of differential association's premise that delinquent behavior is influenced by the ratio of definitions favorable to those unfavorable to law violation (Sutherland, 1947), the proportion of delinquent friends in a respondent's network is most strongly associated with respondents' subsequent delinquency. This relative measure of peer delinquency is preferable to a measure of the absolute level of delinquency occurring by friends, the average delinquency committed by friends, or the absolute number of delinquent friends. Enmeshment in a friendship network where consensus about the appropriateness of delinquency is maximized (i.e., all friends are delinquent or non-delinquent) most effectively constrains the behaviors of network members to resemble the groups' behavior.     

Impact of Chinese Parenting on Adolescents’ Social Bonding,Affiliation with Delinquent Peers,and Delinquent Behavior

Using data collected from 615 middle- and high-school students in rural and urban areas in China, this study examines how different parenting styles such as warmth, coercion, monitoring, and permissiveness affect children’s delinquent behavior, both directly and indirectly through bonds with conventional others (i.e., parents, school, and peers) and affiliation with delinquent peers. The results show that only parental coercion has a direct effect on delinquency. All parenting styles, except for parental monitoring, affect delinquency indirectly through mediating processes of social control and social learning in predicted directions. Despite different pathways to delinquency, variables of social control and social learning play an important role in mediating the relationship between parenting and delinquency. The implications of the results are discussed.     

Similarities and differences between perceptions of peer delinquency,peer self-reported delinquency,and respondent delinquency: An analysis of friendship dyads

Purpose

Despite the peer delinquency measurement debate having profound implications for research, looming questions remain about the validity of various forms of peer delinquency operationalizations. This study examines whether perceptions of peer delinquency form identical latent constructs to both respondent and peer self-reported delinquency.

Methods

Using a dyadic dataset of friendship pairs, confirmatory factor analysis and model comparison tests are used to determine the degree of similarity between perceptions of peer delinquency, respondent self-reported delinquency, and peer self-reported delinquency.

Results

Peer self-reports and respondent perceptions of peer delinquency load on unique constructs across a number of different behaviors. For most behaviors, respondent perceptions of peer delinquency and respondent self-reports load on separate constructs. Results further indicate that respondent and peer self-reported delinquency are separate latent constructs. Finally, the strength of the association between respondent and peer delinquency is substantively smaller in magnitude, by as much as a factor of three in some instances, when peer delinquency is measured via peer self-reports in place of respondent perceptions.

Conclusions

Reports of peer delinquency provided directly from peers demonstrate strong discriminant validity in relation to self-reported delinquency, while perceptions of peer delinquency demonstrate poorer discriminant validity, particularly for theft and violence constructs.     

Does the measurement of peer deviance change the relationship between self-control and deviant behavior? An analysis of friendship pairs

Purpose

The measurement debate between social learning and self-control theories has predominantly focused on self-control, leaving an unexplored and equally important measurement controversy concerning the operationalization of the peer delinquency construct. This study addresses how self-control's relationship with deviant and criminal behavior changes when peer deviance is statistically controlled for using an indirect, perceptual measure or a self-report directly from a peer.

Methods

Data from 796 friendship pairs are used to estimate a series of regression models that regress respondent deviance onto indirect and direct peer deviance and attitudinal and behavioral self-control measures while controlling for elements of the social bond and demographic characteristics.

Results

When an indirect measure of peer delinquency is replaced with a direct measure from respondents’ friends, the relationships between self-control - attitudinal and behavioral measures - and deviance and criminal behavior are consistently larger. The use of a direct peer deviance measure does not prove the peer deviance-crime relationship spurious, but does substantially weaken the relationship between self-control and deviance and criminal behavior.

Conclusions

The strength of the relationship between self-control and deviant/criminal behavior is contingent on how peer deviance is operationalized, regardless of how self-control is measured (attitudinally or behaviorally).