Social Network Influences on Adolescent E-cigarette Use.

Background: Determine if individual adolescent vaping is associated with the vaping behavior of their school-based friendships; whether that association stems from peer influence or peer selection; and whether it varies by age. Methods: Two wave longitudinal survey of 1,208 students in one Midwestern US school district. Students were asked if they ever vaped and to name their seven closest friends within the school district. A roster of all eligible students was pre-loaded into the survey to facilitate network data collection. Terms for network exposure, the proportion of vaping friends; and selection, the number of new friends who vape, were created. Logistic regression and Stochastic Actor Oriented Models were used to test both influence and selection effects. Results: A cross-sectional logistic regression model indicated that friend vaping was associated with individual vaping (AOR = 4.96, p < 0.01); and lagged logistic models indicated that increased friend vaping was associated with individual vaping initiation (AOR = 1.72, p < 0.05). Selecting new friends who vape was also associated with becoming a vaper (AOR = 1.25, p < 0.01). Both influence and selection were present for those less than 14 years old. Conclusions: This is the first study to use social network analysis to show that adolescents who vape or initiate vaping are more likely to do so if their friends vape, and/or they make new friends who vape. Prevention and cessation programs should address the role of friend influence and selection on e-cigarette use; particularly at younger ages.

Diffusion effects of a sexual violence prevention program leveraging youth-adult partnerships.

The purpose of the current study was to examine the diffusion effects of a youth-led sexual violence prevention program (i.e., Youth Voices in Prevention [Youth VIP]). Specifically, social network analysis was used to measure the extent to which Youth VIP changed behaviors for 1172 middle and high school youth who did not attend program events but were friends with Youth VIP participants and completed the first and final survey (approximately 2 years apart). Findings suggest that there was considerable interpersonal communication about Youth VIP among the students generated by program participation. Specifically, youth with friends who participated in Youth VIP were more likely to report hearing their friends talk about Youth VIP and reported talking to their friends about Youth VIP compared with those not connected to Youth VIP participants. However, there were no diffusion effects found for behavioral outcomes (i.e., bystander intervention behavior, violence victimization, and perpetration). Given the mixed findings, further research is needed to determine the extent to which youth-led sexual violence prevention initiatives lead to changes in broader community-wide changes in youths' behaviors.

Prospective Associations Between Pornography Viewing and Sexual Aggression Among Adolescents.

Adolescence is a critical period for sexuality development; this study examined prospective associations between pornography use and sexual aggression using a longitudinal study of middle and high school students surveyed five times across 3 years (mean age = 13.7 years at baseline; 53.2% female; 76.5% White; 21.0% Native American; 88.9% heterosexual). Across waves, 15.7%-29.0% of adolescents had viewed pornography in the past 6 months. Results indicated significant, reciprocal associations between pornography and sexual harassment perpetration that were stronger for male adolescents, and some significant associations between pornography use and subsequent sexual assault perpetration. Findings underscore the need to consider multiple theories of the link between pornography viewing and aggression and need for media literacy sexual education beginning in middle school.

Age and Sexual Orientation Moderated the Effects of a Bystander-Focused Interpersonal Violence Prevention Program for High School Students.

The objective of the current paper was to identify moderating factors of a bystander-focused violence prevention program for adolescents, Bringing in the Bystander-High School Curriculum. Participants were 2,403 high school students from 25 schools in northern New England (M age = 15.8 years; 50.9% female; 85.1% White, 84.5% heterosexual) who participated in a cluster-randomized controlled trial. We examined impact among different social groups (i.e., by race, gender, age, poverty, sexual orientation) using moderation analyses. The intervention effects for the past 12-month sexual harassment and stalking perpetration were stronger for younger participants and heterosexual participants; poverty, race, and gender did not moderate any program effects. Findings indicate that future prevention research should consider additional targets for older adolescents that may improve intervention program efficacy. An urgent need exists for interventions that are effective for sexual minority adolescents.

Evaluating the Impact of a Youth-Led Sexual Violence Prevention Program: Youth Leadership Retreat Outcomes.

Involving youth in developing and implementing prevention programs to reduce sexual violence (SV) has the potential to improve prevention outcomes. However, there has been little focus on youth-led SV prevention programs, and limited evaluation research to help guide efforts. The current study examined the effectiveness of Youth Voices in Prevention (Youth VIP) leadership retreats on SV victimization and perpetration, forms of violence related to SV (e.g., bullying), SV bystander behaviors and readiness, and perceptions of norms related to SV prevention. Results identified mixed findings for program impact, with variations in outcomes that can help guide future youth-led prevention program initiatives. Youth attending a large "kick-off" leadership retreat (that was less youth-led that subsequent smaller retreats) later reported more bystander behaviors, but also reported increased perpetration and victimization, compared to non-attending youth. However, youth attending smaller, more focused leadership retreats held during the school year, reported reductions in sexual harassment perpetration and improved bystander behaviors and attitudes compared to non-attending youth. Evaluation of moderator variables suggests that program impact was generally stronger for younger participants, sexual minority youth, and non-White youth (which were largely Native American youth in this sample). Findings suggest promise for youth-led prevention work but also highlight the need for testing the impact of different training structures and modalities. Clinical trials number: NCT03207386.

Youth perceptions of prevention norms and peer violence perpetration and victimization: A prospective analysis.

The purpose of the current study is to prospectively examine the extent to which social norms perceptions regarding commitment to ending sexual violence are associated with subsequent peer victimization and perpetration experiences. Two types of social norms perceptions were examined: 1) peer norms (perceptions of norms among other students in their city), and 2) adult norms (perceptions of norms among adults in their city). Participants were 1259 middle and high school youth from a single school district (three high schools and five middle schools) who completed online surveys at two-time points, 6 months apart. Adolescents for whom perceptions of peer norms were one standard deviation or more above and below the mean of actual norms were "over-perceivers" and "under-perceivers," respectively. Overperceivers overestimated their peers' commitment to ending sexual violence, whereas underperceivers underestimated their peers' commitment to ending sexual violence. Other adolescents were "accurate perceivers"; these adolescents were accurate in their estimation of their peers' commitment to ending sexual violence. In general, underperceivers (22.2% of the sample) were more likely than accurate perceivers (77.8% of the sample) to subsequently experience peer-to-peer perpetration and victimization. Adolescents who perceived adults to have a higher commitment to ending sexual violence were less likely to report subsequent perpetration and victimization for some forms of peer-to-peer violence. These findings highlight the potential promise of the social norms approaches to prevent peer-to-peer violence among youth which aligns with increasing calls in the field to integrate these approaches into comprehensive sexual violence prevention.

The stability of youth popular opinion leaders selected over time using social network analysis.

Community interventions that use social network analysis to identify and involve influential individuals are promising for behavior change. However, youth friendships are often unstable. The current study examined the stability of the youth selected as influential in a friendship social network, that is, the degree to which youth selected at one time point were also selected at subsequent time points. Influential youth, also called popular opinion leaders (POLs), were selected to be part of a community-wide sexual violence prevention initiative. POLs were selected based on high in-degree (number of times an individual was nominated as a best friend by another student). We found that POLs were unstable: only 29.81%-41.01% of POLs were stable across time. The percentage of POLs who were stable decreased across time. No factors (social identities, behavioral, attitudinal) consistently predicted POL stability. Although these findings are in need of replications, social network interventions for youth may need to repeatedly select new POLs to account for instability.

Scope and correlates of high school youths' exposure to dating and sexual violence prevention initiatives.

The researchers examined the extent to which high school youth were exposed to dating and sexual violence (DSV) prevention types (e.g., social marketing campaign) across various locations (e.g., in-school) and how exposure to DSV prevention related to perceptions of social norms and collective efficacy. Participants included 877 high school youth who completed in-school surveys across three towns in New England. Most youth (92%) were exposed to DSV prevention. In general, active exposure and active participation, more so than passive exposure, were related to greater perceptions of collective efficacy and perceptions of social norms more intolerant of DSV. Results also suggested that online exposure to DSV prevention was the most consistent correlate of greater perceptions of collective efficacy and perceptions of social norms more intolerant of DSV. These findings provide clues about the types and locations that might be most effective at preventing DSV among youth.

Community Conversations on Relationship Violence: Town Variations in Prevention Perceptions through Concept Mapping.

To further develop domestic and sexual violence (DSV) prevention strategies at the community level requires an understanding of how community members in towns think about prevention. Using concept mapping, this study sought to better understand community members' perspectives about what DSV prevention strategies would be most feasible, most effective, and generate the greatest community support within their town. Data were collected across four rural Northern England towns. Participants (>90% White) in each town (total sample size = 119) brainstormed, sorted, and rated between 67 and 90 statements per town (x̅ = 75). Based on the results, a 5-cluster solution of school settings, conversations, individual direct action, community building, and community awareness was identified across all four towns as DSV prevention strategies with one town identifying an additional cluster solution of governance. Despite identifying similar prevention strategies, participants from each town rated these clusters of strategies differently on how feasible, effective, and supported they would be in their community. Overall, our results suggest that there were interesting consistencies across four towns in a similar geographic region in terms of how DSV prevention was described. However, individual communities differed in their views of the feasibility and acceptability of the different strategies. These results suggest that different strategies and higher-level actions may be required to address and prevent DSV within different towns and communities and that community narratives can clarify which specific strategies may encounter fewer barriers to implementation.

Bystander Intervention as a Prevention Strategy for Campus Sexual Violence: Perceptions of Historically Minoritized College Students.

The bystander intervention approach to campus sexual violence has received increased attention as a promising prevention strategy. However, there lacks research on the perspective of historically minoritized students, such as students of color, LGBTQ-spectrum students, and the intersections thereof. As such, the purpose of this paper is to present the findings from an exploratory study regarding bystander intervention that focused exclusively on the perspectives of 101 racialized and/or LGBTQ-spectrum students at three campuses across a large public university. Using concept mapping methodology, the study was conducted in three phases: brainstorming of statements about bystander intervention, sorting and rating of statements, and mapping and interpretation of the results. Using multidimensional scaling and hierarchical cluster analysis, a six-cluster solution was determined, representing key themes related to supporting students' efforts as helpful bystanders. Overall, findings indicate a need for bystander intervention efforts to widen their focus by employing an intersectional, social justice lens. Study participants identified various forms of racism, homophobia, transphobia, and microaggressions as intertwined with their ability to be active bystanders on college campuses.

Preventing Teen Relationship Abuse and Sexual Assault through Bystander Training: Intervention Outcomes for School Personnel.

The purpose of the current study was to examine the impact of exposure to Bringing in the Bystander-High School Curriculum (BITB-HSC) on school personnel, which included a seven session classroom curriculum for ninth through twelfth graders (student curriculum), a bystander training workshop for school personnel (school personnel workshop), and reading materials (handout). We examined how exposure to these various BITB-HSC intervention components was associated with school personnel's knowledge and bystander efficacy, intentions, and barriers specific to student relationship abuse (RA) and sexual assault (SA). Participants were 488 school personnel from 12 high schools in upper New England who completed the 4-month follow-up survey that assessed for intervention exposure (284 participants completed both the baseline and follow-up survey). Whereas 53% of participants were exposed to no intervention components, the other half of the sample were exposed to a combination of intervention components. Higher baseline knowledge and reactive bystander intentions were associated with subsequent exposure to both the student curriculum and the handout, and fewer barriers to bystander action predicted exposure to the school personnel workshop. Exposure to the school personnel workshop, student curriculum, and handout was associated with subsequent greater knowledge, exposure to the student curriculum predicted reactive bystander intentions, and exposure to the handout predicted higher reactive bystander intentions and bystander efficacy. Findings suggest that despite challenges with engagement, exposure to the BITB-HSC components may be a useful tool in improving school personnel's responses to RA and SA among high school students.

Reactions to Actions: Exploring How Types of Bystander Action Are Linked to Positive and Negative Consequences.

Sexual and dating violence (SDV) are growing public health problems in the United States. Prevention programs have sought to engage potential bystanders so they can safely and effectively intervene in situations involving SDV. However, the ability of these programs to prepare bystanders may be limited if they do not address the possible outcomes of their actions. Few studies have examined positive and negative consequences of bystander action, and only one has examined how various types of action impact these consequences. The purpose of our study was to explore how specific types of bystander actions and their number of actions were related to positive and negative consequences. We recruited participants (N = 615) through Amazon's Mechanical Turk and a university subject pool, all of whom were between the ages of 18 and 24. Participants described the type of action they took in response to risk for SDV (i.e., harassing comments, dating violence, unwanted sexual advances, and controlling behavior). We performed a content analysis on participants' written responses about the type of action taken. New measures of bystander consequences were used to examine bystander feelings and reactions of others (e.g., the victim, perpetrator). A range of action types were identified (i.e., direct, distract, distance, delegate, and physical action). Of note, direct action toward the perpetrator was related to more negative feelings and responses, whereas distract and distance action were associated with more positive feelings and responses from others. Further, taking multiple actions (as opposed to a single one) was related to more positive feelings and responses from others. Implications for research and practice are discussed, with a specific focus on prevention programming.

Evaluation of a Bystander-Focused Interpersonal Violence Prevention Program with High School Students.

This study evaluated the effectiveness of a seven-session, bystander-focused, classroom-delivered curriculum (i.e., Bringing in the Bystander-High School Curriculum [BITB-HSC]) in reducing rates of interpersonal violence among high school students. High schools (N = 26) were randomly assigned to the treatment or control condition. In classrooms in treatment schools, students (n = 1081) completed a baseline survey, participated in the BITB-HSC, and completed an immediate post-test, a short-term post-test (approx. 2 months after intervention), and a long-term post-test (approx. 1 year after intervention). Youth in control schools (n = 1322) completed surveys at similar time points but did not participate in the BITB-HSC. Participants were 15.8 years old on average and largely White (85.1%) and heterosexual (84.5%). Students exposed to the BITB-HSC demonstrated significant short-term changes in victim empathy and bystander barriers/facilitators, and long-term changes in rape myths, media literacy, bystander readiness, and knowledge relative to youth in the control condition. Although the BITB-HSC had little long-term impact on actual bystander behavior, there were reductions in some forms of violence among students in the BITB-HSC condition relative to the control condition. Future research is needed to determine if, for whom, why, and in what contexts (e.g., classroom-based versus school-wide initiatives) bystander-focused violence prevention initiatives reduce violence.

Perceptions of Community Norms and Youths' Reactive and Proactive Dating and Sexual Violence Bystander Action.

There is enthusiasm for programs that promote bystander intervention to prevent dating and sexual violence (DSV). However, more information about what facilitates or inhibits bystander behavior in DSV situations is needed. The present cross-sectional survey study investigated whether youth perceptions of adults' behavior and community norms were associated with how frequently youth took action and intervened in DSV situations or to prevent DSV. Specifically, study hypotheses were that youths' perceptions of community-level variables, such as adults' willingness to help victims of DSV or prevent DSV, perceptions of community collective efficacy, and perceptions of community descriptive and injunctive norms disapproving of DSV and supporting DSV prevention, would be associated with how frequently youths took reactive and proactive bystander action. Participants were 2172 students from four high schools in one New England state. ANOVA analyses found that descriptive norms were associated with all actionist behaviors, and perceptions of community cohesion were also consistently associated with them. Injunctive norms were associated, but less consistently, with actionist behaviors. Findings suggest that DSV-related social norms, and descriptive norms and community cohesion in particular, might be relevant to youth DSV bystander behavior.

The Development and Psychometric Evaluation of the Reasons for Disclosing Sexual and Intimate Partner Violence Scale.

A wide body of research has studied what happens when survivors disclose interpersonal violence (Ullman, 2010; Ullman & Filipas, 2001). Less studied is why survivors disclose their experiences. Although research in other disciplines has created measures to assess the reasons for disclosing other concealable identities (Derlega, Winstead, Folk-Barron, & Petronio, 2000), the present study aimed to fill a gap in the existing literature by creating a measure to assess the reasons for disclosing sexual and intimate partner violence. The Reasons for Disclosing Sexual and Intimate Partner Violence Scale was created after interviewing survivors and receiving feedback on the measure from crisis center advocates and experts in the field (i.e., content validity). The psychometric properties (i.e., dimensionality and reliability) of the measure were tested with a sample of 274 adult female survivors of sexual and intimate partner violence. The results suggested that reasons for disclosing sexual and intimate partner violence can be broken down into seven factors (e.g., safety and justice, image validation), and that these reasons vary from other concealable identities.

Posttraumatic Growth as a Mediator of Self-Blame and Happiness in the Context of Interpersonal Violence.

Sexual assault (SA) and intimate partner violence (IPV) occur at alarming rates in the United States. Prior research indicates that victims of traumatic events frequently experience both positive and negative changes as part of their recovery process. The present study aimed to further existing research by examining the relationship between self-blame, posttraumatic growth (PTG), and happiness when controlling for posttraumatic stress and time since victimization. The current study analyzed 357 women who had experienced at least one incident of SA or IPV. We found that PTG partially mediated the relationship between self-blame and happiness, suggesting that PTG only somewhat explains the impact of self-blame on victim happiness. Implications of these findings and directions for future research are discussed.

Rape Myth Acceptance in Sexually Assaulted Adolescents' School Contexts: Associations with Depressed Mood and Alcohol Use.

High school students exposed to sexual assault (SA) are at risk for negative outcomes like depressed mood and high-risk drinking. Although evidence suggests that both social contexts and internalized stigma can affect recovery from SA, no research to date has directly examined the presence of stigma in social contexts such as high schools as a correlate of adjustment after SA. In this study, the self-reported rape myth acceptance (RMA) of 3080 students from 97 grade cohorts in 25 high schools was used to calculate grade-mean and school-mean RMA, which was entered into multilevel models predicting depressed mood and alcohol use among N = 263 SA survivors within those schools. Two forms of RMA were assessed (i.e., rape denial and traditional gender expectations). Results indicate that higher grade-mean rape denial was associated with higher risk for depressed mood among high school boys and girls exposed to SA, and higher grade-mean traditional gender expectations were associated with higher risk for alcohol use among girls exposed to SA. Survivors' own RMA and school-level RMA were not significantly associated with their depressed mood or alcohol use. Although causality cannot be concluded, these findings suggest that interventions that reduce stigma in social contexts should be explored further as a strategy to improve well-being among high-school-aged survivors of SA.

Rural Young Adults' Lay Theories of Intimate Partner Violence: A Qualitative Examination.

This study qualitatively examined rural emerging adults' ways of thinking (i.e., lay theories) about the causes of intimate partner violence (IPV) and ideas on how to prevent IPV most effectively. Participants were 74 individuals (majority Caucasian, heterosexual, low income) between the ages of 18 and 24 who resided in one of 16 rural communities. Participants' perceptions of the causes of IPV included (a) individual-level pathology, stress, and lack of education; (b) intergenerational transmission of violence and early-life factors; (c) relationship stressors and challenges; and (d) community factors. Furthermore, participants felt that IPV could most effectively be prevented through (a) education and awareness; (b) victim-focused efforts (e.g., teaching self-esteem); and (c) job creation. Overall, participants identified a number of established risk factors for IPV perpetration across the social ecological model, although a number were never or rarely mentioned (e.g., peer group norms, positive bystander action, and collective efficacy). Future research should examine if and how perceptions of the causes of IPV impact IPV prevention engagement and impact. Further, prevention initiatives that take into account understandings of lay theories about IPV may be more impactful in reducing IPV than prevention initiatives that do not.

Community matters: intimate partner violence among rural young adults.

Drawing on social disorganization theory, the current study examined the extent to which community-level poverty rates and collective efficacy influenced individual reports of intimate partner violence (IPV) perpetration, victimization, and bystander intervention among a sample of 178 young adults (18-24; 67.4% women) from 16 rural counties across the eastern US who completed an online survey that assessed demographic information, IPV perpetration, victimization, bystander intervention, and collective efficacy. We computed each county's poverty rate from the 2007-2011 American Community Survey. Generalized estimating equations demonstrated that after controlling for individual-level income status, community-level poverty positively predicted IPV victimization and perpetration for both men and women. Collective efficacy was inversely related to IPV victimization and perpetration for men; however, collective efficacy was unrelated to IPV victimization and perpetration for women. Whereas IPV bystander intervention was positively related to collective efficacy and inversely related to individual-level income status for both men and women, community-level poverty was unrelated to IPV bystander intervention for both men and women. Overall, these findings provide some support for social disorganization theory in explaining IPV among rural young adults, and underscore the importance of multi-level IPV prevention and intervention efforts focused around community-capacity building and enhancement of collective efficacy.

A Latent Transition Model of the Effects of a Youth-Led Sexual Violence Prevention Initiative on Victimization and Perpetration Trajectories Over Time.

PURPOSE: Latent transition analysis was used to characterize transitions over time in profiles of victimization and perpetration of sexual and related forms of violence (i.e., bullying, dating violence, sexual harassment) over a 2.5-year period among middle and high school students. We also examined how profiles of violence varied as a function of participation in a youth-led sexual violence prevention initiative (Youth Voices in Prevention [Youth VIP]). METHODS: Participants were 2,528 youth (53.3% female, average age = 13.73 years) who completed a survey at five points (every six months) over three academic years (fall 2017-fall 2019). Participation in Youth VIP was tracked by researchers and took place from summer 2018 to fall 2019. RESULTS: Four classes (i.e., low violence class, victimization only class, sexual harassment class, mixed violence class) best captured patterns of victimization and perpetration experiences. The latent transition analysis showed that the least severe class had the highest stability, with the fewest students transitioning out of this class over time. Results also demonstrated that, overall, participation in at least one Youth VIP event, compared to not participating in any Youth VIP events, related to positive transitions over time to less severe classes. DISCUSSION: Violence experienced by youth is not homogenous, although classes of violence among youth are generally stable over a 2.5 period. Results also provide further evidence that Youth VIP is a promising approach to prevent sexual and related forms of violence and appears to promote transition into less severe classes of violence over time.