BackgroundSchool violence and bullying are prevalent problems that affect health in general, especially through the development of emotional and behavioral problems, and can result in the deterioration of the academic performance of the student victim. The objective of this study was to determine the prevalence rates of aggressive behaviors according to types of school violence and bullying, sociodemographic characteristics, and variation by department, region, and time in the period between 2014 and 2018 in Peru.MethodsThe design was observational and cross-sectional based (...) on data from the Specialized System for Reporting Cases of School Violence in Peru, which covers a population of 23,641 students at the initial, primary, and secondary levels of Basic Regular Education [Educación Básica Regular ], for the 2014–2018 period. The prevalence rates of the different types of school violence and bullying, the sociodemographic characteristics, and the variation by department, region, and time in the period between 2014 and 2018 were estimated.ResultsPsychological violence/bullying occurred at higher prevalence rates. Women from public institutions reported greater sexual violence, mostly by teachers than by other students. The Selva region had the highest prevalence rate of sexual violence. The departments of Tacna and Piura had the highest and lowest rates of psychological/verbal violence and bullying in 2018.ConclusionPsychological/verbal violence and bullying is highly prevalent among students; women report being victims of sexual violence by administrative personnel of public institutions. The Selva region had the highest rate of sexual violence, and Piura and Tacna had the highest and lowest rates of violence and psychological/verbal bullying. Based on these results, it is suggested to conduct evidence-based prevention programs in Peruvian schools to reduce these social problems. (shrink)

Bullying is a phenomenon that affects children and adolescents worldwide, and it has major consequences for all participants involved in these situations. In Chile, researchers have validated several instruments used to investigate aggression between peers and school violence, but there is a lack of validation of instruments to investigate bullying. The purpose of this study was to provide evidence of the validity and reliability of the Olweus Bully/Victim Questionnaire—Revised version in the Chilean context. The participants were 2,775 students from schools (...) of low, medium, and high socioeconomic status. OBVQ-R is a self-report questionnaire with 42 items, which has been used in different countries, and has adequate psychometric properties to assess the prevalence of victimization and aggression and various forms of bullying worldwide. Results confirmed the two-factor structure of the OBVQ-R and good reliability. These dimensions seem to be correlated. Comparison between OBVQ-R with the School Violence between Peers Questionnaire and the Internet Experiences Questionnaire showed some degree of agreement. The Item Response Theory analysis showed that the item about verbal bullying, in both subscales, had the lowest-severity parameters, meaning that these forms of bullying were the most prevalent. The higher-severity parameter in the victimization scale was the cyberbullying item, and the sexual bullying item showed higher severity in the perpetration subscale. The differential item functioning analysis by gender showed a trend in which boys responded with lower-severity parameters than girls. In the victimization scale, the exception was the item about spreading rumors, and in the perpetration subscale, it was the item about racial bullying. We have provided evidence of the validation of OBVQ-R among school-age children and adolescents in Chile. This study is part of a trial registered at ClinicalTrials.gov, number NCT02898324. (shrink)