Personal network change is largely driven by transitions between the groups and organizations where people spend their day-to-day lives. But, how do entrants choose which relationships to pursue among the numerous possibilities a new environment offers? We expect newcomers will use the same mechanisms as longer-tenured members, although this will take time as they acclimate and form initial relationships that support future ties. Thus, our goal is to understand how the network selection processes used by new organizational members shift in importance as time in the organization grows. We focus on network selection via homophily, propinquity, formal relations, and endogenous network processes. For each mechanism, we distinguish between change in the strength of the mechanism and opportunities to enact the mechanism. We evaluate expected changes using network data from a prison-based therapeutic community (TC). This setting is ideal because the structured nature of TC entry and exit generates regular membership turnover and removes confounds present in studies of more familiar contexts (e.g., schools). Results show that the relative importance of network selection mechanisms varies over tenure, with homophily dominating early on and endogenous network processes catching up later. We discuss implications of these findings for new member socialization and broader patterns of inequality.

Penologists have long emphasized the importance of studying social relationships among prisoners to understand how people adapt to confinement. While several penological traditions clearly implicate social networks as an explanatory mechanism, network methods have rarely been applied in prison research. We suspect that prison scholars have been slow to incorporate social networks into their research because of the challenges—both real and perceived—of collecting social network data in the prison setting. In this article, we argue that successfully collecting network data from prisoners can be achieved by carefully adapting methods to the peculiarities and constraints of the prison setting. We draw upon experiences from the Prison Inmate Networks Study (PINS) and its associated projects in five Pennsylvania prisons to construct a framework for understanding and overcoming the obstacles to network data collection in prisons.

Aims

The current report examined associations between romantic partner, peer and individual substance use behaviors in a sample of American adolescents.

Design

The report used two waves of data (8th and 9th grades) from the Partnerships to Enhance Resilience (PROSPER) intervention project and focused on dating couples and their friends in 54 sampled school-cohorts. Hierarchical logistic regression models examined the associations between friend, partner and friend-of-partner substance use and daters' future drinking and smoking.

Setting

Surveys administered in rural Pennsylvania and Iowa secondary schools.

Participants

A total of 744 dating couples.

Measurements

Student participants completed questionnaires that assessed substance use, background characteristics and dating and friend nominations. Friend, partner and friend-of-partner substance use were assessed at each wave directly from respective reports.

Findings

Consistent with a bridging hypothesis, friends-of-partner drinking had a strong and independent association with subsequent drunkenness (b = 1.40, P < 0.01) and drinking (b = 0.82, P < 0.01) among daters, and these associations did not vary by gender. A similar association was not observed for smoking, where partner (b = 0.77, P < 0.01) and direct friends (b = 1.19, P < 0.05) smoking showed strong and significant associations with future smoking, but friends-of-partner smoking did not (b = -0.44, P > 0.10).

Conclusion

Romantic partner and peer behaviors have substantially different associations with adolescent drinking and smoking. Intervention efforts aimed at reducing teenage smoking should be aimed at proximal peer and romantic relationships, whereas interventions of teenage drinking should also include the wider circle of indirect friends.

The current study investigates informal social structure among prison inmates. Data come from the Prison Inmate Network Study (PINS), a project focused on a unit of a Pennsylvania medium security men's prison. We focus on 205 inmates and their “get along with” network – an approximation of friendship in other settings. We find a weak subgroup structure dominated by two groups of “old heads” and characterized by moderate (non gang-based) race/ethnic clustering. Structurally, the network resembles adolescents in schools, suggesting that prison inmates are capable of successfully building peer associations. We conclude that under the right conditions self-organizing inmate society can foster social integration reminiscent of other social settings.

Background

The Therapeutic Community (TC) is a common treatment modality for incarcerated individuals with substance use disorders. TCs rely on peer group processes to promote lasting behavioral and identity change, yet prior research has not adequately tested the peer influence mechanisms underlying the theoretical model. This study applied dynamic network analysis to estimate peer influence processes central to TC philosophy.

Methods

A stochastic actor-oriented model (SAOM) was applied to ten months of social network data collected from prisoner surveys within a TC unit (N = 62) in a medium-security Pennsylvania prison. Respondents (N = 177, 84% of unit) completed at least one prison survey and provided network and community role model nominations.

Results

Although residents' levels of treatment engagement were significantly correlated with their nominated peers, estimates of peer influence for treatment engagement were non-significant in longitudinal network models. Nor were estimates of peer influence significantly greater for peers perceived as community role models. Rather, inmates connected with peers who were of similar treatment engagement as themselves (i.e., a peer selection process), and the latter primarily resulted from racial homophily in the TC social network.

Conclusions

Inconsistent with the desired treatment model, treatment engagement diffusion was not evident in the sampled TC. Results suggested that highly-engaged residents clustered together at the center of the TC's social structure but had little impact on less-engaged and peripheral inmates. The relatively short (i.e., four-month) program length and moderate-to-low treatment fidelity likely contributed to the lack of peer influence processes.

Research of inmate social order is a once-vibrant area that receded just as American incarceration rates climbed and the country's carceral contexts dramatically changed. This study reengages inmate society with an abductive mixed methods investigation of informal status within a contemporary men's prison unit. The authors collect narrative and social network data from 133 male inmates housed in a unit of a Pennsylvania medium-security prison. Analyses of inmate narratives suggest that unit "old heads" provide collective goods in the form of mentoring and role modeling that foster a positive and stable peer environment. This hypothesis is then tested with Exponential Random Graph Models (ERGMs) of peer nomination data. The ERGM results complement the qualitative analysis and suggest that older inmates and those who have been on the unit longer are perceived by their peers as powerful and influential. Both analytical strategies point to the maturity of aging and the acquisition of local knowledge as important for attaining informal status in the unit. In sum, this mixed methods case study extends theoretical insights of classic prison ethnographies, adds quantifiable results capable of future replication, and points to a growing population of older inmates as important for contemporary prison social organization.

The mid-twentieth century witnessed a surge of American prison ethnographies focused on inmate society and the social structures that guide inmate life. Ironically, this literature virtually froze in the 1980s just as the country entered a period of unprecedented prison expansion, and has only recently begun to thaw. In this manuscript, we develop a rationale for returning inmate society to the forefront of criminological inquiry, and suggest that network science provides an ideal framework for achieving this end. In so doing, we show that a network perspective extends prison ethnographies by allowing quantitative assessment of prison culture and illuminating basic characteristics of prison social structure that are essential for improving inmate safety, health, and community reentry outcomes. We conclude by demonstrating the feasibility and promise of inmate network research with findings from a recent small-scale study of a maximum-security prison work unit.