Background Motivational models for marijuana use have focused on reasons to use marijuana, but rarely consider motives to abstain. Objectives We examined how both adolescent marijuana abstinence motives and use motives contribute to marijuana use and problems at the end of emerging adulthood. Methods 434 community recruited youth who had not initiated marijuana use at baseline were followed from adolescence (at ages 12, 15, and 18 years) into emerging adulthood (age 25 years). Motives to abstain and to use marijuana, marijuana consumption, and marijuana-related problems were assessed across time. Results Endorsing more motives to abstain from marijuana across adolescence predicted less marijuana use in emerging adulthood and fewer marijuana-related problems when controlling for past motives to abstain and marijuana-related behavior. Positive reinforcement use motives related to increased marijuana consumption and problems, and negative reinforcement motives predicted problems when controlling for past marijuana use motives and behaviors. Expansion motives during adolescence related to lower marijuana use in emerging adulthood. When considered together, motives to abstain buffered the effect of negative reinforcement motives on outcomes at age 25 for youth endorsing a greater number of abstinence motives. Conclusions/Implications Given these findings, inclusion of both motives to use and abstain is warranted within comprehensive models of marijuana use decision making and may provide important markers for prevention and intervention specialists.

Sexual violence in sport is prevalent and represents a serious public health concern. The social-ecological model for health promotion has been used successfully as a framework to identify individual-to-policy level factors aimed at health promotion or disease prevention. The purpose of this review was to examine both published and non-published (publicly available) SVP efforts conducted within the context of sport and make recommendations for future practice. Grey literature search methods were utilized to conduct a review of publicly available documents. This included (a) a comprehensive Google search using unique search terms that would identify SVP efforts within sport settings and (b) a review of the publicly accessible websites identified in the previous step. Following the grey literature search, and using the SVP practices identified in step one, we conducted a supplementary literature search using scientific publication search engines to identify whether the SVP practices identified in step one had associated peer-reviewed publications. Finally, we assessed various characteristics of each SVP practice including the target population, age range of intended participants, and whether the SVP had associated peer review publications. This led to the identification of 35 unique SVP practices: 25 (71%) SVP practices were assigned to the Intrapersonal level, 6 (17%) were assigned to the Interpersonal level, 9 (26%) were assigned to the Organizational level, 3 (9%) were assigned to the Community, and 2 (6%) were assigned to the Policy level. This review uncovered several important findings including a lack of multi-level SVP practices within sport, a lack of SVP practices that target children, minimal programming aimed at specifically preventing perpetration, the need to elevate policy level action, and a lack of peer-reviewed literature. Ultimately findings suggest that sport organizations ought to prioritize sexual violence prevention using national organizations for guidance.

Exposure to childhood trauma is particularly prevalent among incarcerated juveniles. Although there is a growing understanding of the detrimental impact trauma exposure can have on child and adolescent development, childhood maltreatment can be very difficult to accurately measure. Integration of self-report trauma histories as well as supplemental file reports of trauma exposure may provide the most accurate estimate of experienced trauma among youth in correctional settings. Method: The current study developed an expert-rated assessment of trauma that synthesizes self-report, as well as objective file information, using a sample of 114 incarcerated male juveniles. Results: In addition to establishing scale factor structure, reliability, and validity, the current study provides additional evidence of the prevalence of trauma among incarcerated juveniles and reports on external correlates of the scale that are particularly relevant in correctional settings (e.g., psychopathic traits). Conclusion: These results suggest that the integration of both self-report and file material can be meaningfully used to assess traumatic symptomology. Clinical Impact StatementThis study demonstrates that self-report trauma histories as well as supplemental file reports of trauma exposure can be meaningfully integrated to provide a more complete assessment of trauma exposure among adjudicated adolescents. These findings highlight need for an expert-rated measure of childhood trauma among incarcerated youth, and demonstrate utility of a novel trauma assessment.

Sexual violence is a prominent social problem that harms many victims every year. Perpetrators of these crimes tend to exist in a binary. Some are convicted by the criminal justice system, where they face sanctions such as jail time and registration and are demonized by society. Others never face any sanctions for harm caused and are exonerated for their actions. This review examines public perceptions of sexual offenders in the United States through the institutional-level constructs of federal policy, media, and institutional myths. A review of the literature on this topic from 2007 to 2017 produced 37 relevant articles, which were placed into three categories using thematic analysis: (1) perceptions about sexual offenders and perceiver differences, (2) media about sexual offending and effects of media consumption on perceptions of offenders, and (3) support for offender policies and effects of policy on perceptions of offenders. A review of these topics reveals that there are prominent institutional myths about sexual offending. A cyclical relationship is formed, where media perpetuates institutional myths, myths drive policy, and policy leads to media reporting. This review utilizes community psychology theory to examine and interpret the literature as well as to formulate research and intervention suggestions.

Youth with severe conduct problems impose a significant cost on society by engaging in high levels of antisocial and aggressive behavior. Within this group, adolescents with high levels of callous- unemotional traits have been found to exhibit more severe and persistent patterns of antisocial behavior than youth with severe conduct problems but normative levels of callous-unemotional traits. Existing neuroimaging studies, along with theoretical accounts of psychopathology, suggest that dysfunction within the paralimbic cortex and limbic system may underlie elevated levels of callous-unemotional traits. The present study examines this hypothesis by investigating gray matter correlates associated with callous-unemotional traits. A sample of incarcerated male adolescents (N = 269), were assessed using voxel-based morphometry. Callous-unemotional traits were assessed using the Inventory of Callous-Unemotional traits (Frick 2004). Total callous-unemotional traits were negatively correlated with anterior temporal lobe gray matter volume (GMV). Callous traits in particular exhibited a reliable negative correlation with gray matter volume in nearly every paralimbic brain region examined. Uncaring traits were positively correlated with GMV in the orbitofrontal and anterior cingulate cortices. These findings demonstrate specific neural features within the paralimbic cortex and limbic system that accompany elevated callous-unemotional traits and serves to expand our understanding of pathophysiological mechanisms that may give rise to severe conduct problems in youth.