Peer violence perpetration and victimization are the most common types of violence among youths (Swahn et al., 2008). This study determined the associations between peer violence attitudes and involvement in peer violence perpetration and peer violence victimization among boys and girls in high-risk urban community. Analyses were based on data from the 2004 Youth Violence Survey, administered to over 80% of public school students in grades 7, 9, 11, and 12 (N = 4131) in a high-risk urban community. Chi-square and logistic regression analyses were conducted to test the associations between attitudes and involvement in violent behaviors after controlling for demographic characteristics and potential confounders (e.g., child maltreatment, substance use, weapon carrying, and efficacy to avoid violence). Results show that among all youths, attitudes supporting boys hitting boys significantly increased the odds of peer violence perpetration (AOR: 1.48; 95% CI = 1.13, 1.95). However, stratified analyses for boys and girls show that attitudes supporting boys hitting boys increased the odds of peer violence perpetration for girls only (AOR: 1.57; 95% CI = 1.04, 2.37). The findings demonstrate associations between attitudes and actual involvement in violent behaviors, but they need to be further explored. Additional research is needed to determine how attitude modifications can be incorporated into youth violence prevention programs.

Non-suicidal self-injury (referred to hereafter as self-injury) is considered a serious health concern among young adult populations, and is associated with a host of devastating physical and psychological consequences (Hasking, Momeni, Swannell, & Chia, 2008). Self-injury encompasses both thoughts of harming oneself in addition to acts of self-injury. Elevated lifetime prevalence rates of 13-17% suggest that self-injury is an issue of widespread nature, with reports indicating that a considerable proportion of young adults engage in self-injurious thoughts and behaviours (Nixon, Cloutier, & Jansson, 2008; Swannell, Martin, Page, Hasking, & St John, 2014; Whitlock, Eckenrode, & Silverman, 2006). Identifying the factors that precede self-injury is crucial to advancing current clinical conceptualizations and treatment strategies for those engaging in such thoughts and behaviours (Schenk, Noll, & Cassarly, 2010). Despite the recognized role of romantic relationship experiences in contributing to the functioning and adjustment of the individuals comprising the romantic dyad, very little empirical attention has been paid to examining whether dimensions of romantic relationships are linked to the use of self-injury. The present thesis, consisting of two independent studies, sought to provide a better understanding of the factors underlying this troubling phenomenon by examining links between dimensions of romantic relationships and self-injurious thoughts and behaviours among community-based young adults involved in couple relationships. The studies presented in the present thesis were approved by the University of Ottawa’s Research Ethics Board (see Appendix A for the Ethics Approval Certificate). The first study involved testing a novel conceptual model in which intimate partner violence victimization (i.e., physical, psychological, and sexual violence) was examined as a potential mediator of the relationship between child maltreatment (i.e., neglect; witnessing family violence; and physical, psychological, and sexual abuse) and self-injurious thoughts and behaviours. The sample consisted of 406 young adults (346 females; M = 19.87 years) who were involved in a couple relationship for a duration of at least six months at the time of participation. Results from bootstrapping procedures partially supported the theory put forth. Intimate partner violence victimization partially mediated the direct effect of child maltreatment on self-injurious behaviours. Contrary to predictions, intimate partner violence victimization did not mediate the association between child maltreatment and self-injurious thoughts. Hence, findings suggest that individuals who have experienced both forms of family violence may be particularly vulnerable to engaging in self-injurious behaviours. The second study comprised an investigation of the links between the three romantic behavioural systems (consisting of the attachment, caregiving, and sexual systems) and self-injurious thoughts and behaviours, and examined the incremental contributions of the systems in the prediction of young adult self-injury. The sample consisted of 255 young adults (223 females; Mage = 19.98 years) currently involved in a couple relationship. Linear discriminant analyses revealed that participants endorsing self-injurious thoughts experienced greater attachment anxiety and avoidance, controlling and compulsive romantic caregiving behaviours, and lower sexual satisfaction than did participants who did not endorse such thoughts. In contrast, findings indicated that the behavioural systems did not predict self-injurious behaviours. Such findings suggest that dimensions of the three interrelated behavioural systems hold unique roles in understanding young adult self-injurious thoughts, and that the constructs that predict self-injurious thoughts may differ from those that predict self-injurious behaviours.

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Prior research has shown that college women in the United States are experiencing significantly high rates of verbal intimate partner violence (IPV); estimates indicate that approximately 20-30% of college women experience verbal IPV victimization (e.g., Hines, 2007; Muñoz-Rivas, Graña, O'Leary, & González, 2009). Verbal IPV is associated with physical consequences, such as chronic pain and migraine headaches, and psychological implications, including anxiety, depression, suicidal ideation, and substance use (Coker et al., 2002). However, few studies have examined verbal IPV in college populations, and none have focused on Hispanic college women who are members of the largest minority population on college campuses today (Pew Research Center, 2013), and experience higher rates of IPV victimization (Ingram, 2007). The current dissertation sought to address these gaps by examining the influence of familial conflict strategies on Hispanic college women’s verbal IPV victimization. Further, within group differences were explored, with specific attention paid to the role of acculturation and gender role beliefs. A total of 906 from two Hispanic Serving Institutions (HSI) in the southeastern (N=502) and southwestern (N=404) United States participated in the three part study. Study one examined the influence of parental conflict strategies on Hispanic women’s verbal IPV victimization in current romantic relationships. Consistent with previous research, results indicated that parental use of verbal violence influenced verbal IPV victimization in the current romantic relationship. A unidirectional effect of paternal use of verbal aggression towards the participant on maternal verbal aggression towards the participant was also found. Study two examined the influence of parental conflict strategies, acculturation, and gender role beliefs on victimization. Acculturation and gender role beliefs were found to not have an influence on participants’ verbal IPV victimization. Study three examined within-group differences using Study two’s model. Differences were found between the southeastern and southwestern participants; gender role beliefs increased rates of verbal IPV victimization in the southeastern population. The current dissertation fills a gap in the literature on IPV experiences in Hispanic college populations, the importance of examining verbal IPV trends, and highlights importance differing cultural influences within populations traditionally viewed as homogenous. The implications for future research are discussed.

Exposure to multiple forms of victimization has been shown to have increasingly negative outcomes, but their unique trajectory-setting effects have been largely unexplored. Using a life course approach, this paper examines the trajectory-setting effects of childhood polyvictimization into early adulthood. I use a nationwide sample including 3,652 respondents after cleaning and preparation. Seemingly unrelated regressions were used to predict depression and criminal behavior in childhood and adulthood. Results suggest childhood polyvictimization sets children on a negative trajectory which grows increasingly worse through the life course. Researchers and interventions should take these trajectory-setting effects into account when attempting to aid polyvictims.

Objectives: Violence victimization is common in youth, and the association between victimization and ill-health is well established. Youth is also the period when alcohol risk drinking is most prevalent. At youth clinics in Västernorrland, Sweden, a randomized controlled intervention was conducted examining health outcomes and risk drinking after implementing routine inquiry about violence victimization and alcohol consumption. Methods: Participants in the intervention group underwent routine inquiry about violence victimization and alcohol consumption. Victimized participants received empowering strategies and were offered further counseling. Risk drinkers received motivational interviewing (MI). All participants answered questionnaires about sociodemography and health at baseline, at 3 months and at 12 months. Of 1,445 eligible young women, 1,051 (73%) participated, with 54% of them completing the 12-month follow-up. Males were excluded from the quantitative analysis owing to the low number of male participants. Fifteen research interviews examining the experience of routine inquiry were conducted. Results: Violence-victimized young women reported more ill health than non-victimized women did. This was especially evident for those who had been multiply victimized. There were no differences in health outcomes between the baseline and the 12-month follow-up for the intervention group and for the control group. Of the victimized women in the intervention group, 14% wanted and received further counseling. There was a significant decrease in risk drinking from baseline to follow-up, but no differences between the MI group and the controls. There was a large intra-individual mobility in the young women’s drinking behavior. In interviews, the participants described how questions about violence had helped them to process prior victimization. For some, this initiated changes such as leaving a destructive relationship or starting therapy. The participants considered risk drinking in terms of consequences and did not find unit-based guidelines useful. Conclusion: Violence victimization, especially multiple victimization, was strongly associated with ill health in young women. Routine inquiry about violence and subsequent follow-up led to a high degree of disclosure but did not improve self-reported health. However, victimized participants described talking about prior victimization as very helpful. Participants viewed risk drinking in terms of consequences rather than in quantity or frequency of alcohol, which may render unit-based drinking guidelines less useful when addressing risk drinking in youth.